diff --git a/packages/dev-middleware/src/inspector-proxy/Device.js b/packages/dev-middleware/src/inspector-proxy/Device.js
index 9239f04ed94a..9c23bb37bcc2 100644
--- a/packages/dev-middleware/src/inspector-proxy/Device.js
+++ b/packages/dev-middleware/src/inspector-proxy/Device.js
@@ -500,6 +500,8 @@ export default class Device {
     // $FlowFixMe[cannot-write]
     socket.send = function (message: string) {
       cdpDebugLogging.log('ProxyToDebugger', message);
+      /* $FlowFixMe[invalid-this-arg] Error exposed after fixing this typing
+       * unsoundness in flow */
       return sendFunc.call(socket, message);
     };
   }
diff --git a/packages/react-native/Libraries/Animated/__tests__/AnimatedValue-itest.js b/packages/react-native/Libraries/Animated/__tests__/AnimatedValue-itest.js
index b0781d4f865e..ae6d0bedeeb7 100644
--- a/packages/react-native/Libraries/Animated/__tests__/AnimatedValue-itest.js
+++ b/packages/react-native/Libraries/Animated/__tests__/AnimatedValue-itest.js
@@ -237,6 +237,8 @@ describe('AnimatedValue', () => {
       // $FlowFixMe[method-unbinding]
       const original = node.__onAnimatedValueUpdateReceived;
       const spy = jest.fn((...args: Array<unknown>) =>
+        /* $FlowFixMe[invalid-this-arg] Error exposed after fixing this typing
+         * unsoundness in flow */
         original.apply(node, args),
       );
       // $FlowFixMe[cannot-write]
diff --git a/packages/react-native/Libraries/Animated/nodes/AnimatedProps.js b/packages/react-native/Libraries/Animated/nodes/AnimatedProps.js
index 6581c150f437..7f32383b9ea8 100644
--- a/packages/react-native/Libraries/Animated/nodes/AnimatedProps.js
+++ b/packages/react-native/Libraries/Animated/nodes/AnimatedProps.js
@@ -384,4 +384,6 @@ export default class AnimatedProps extends AnimatedNode {
 const _hasOwnProp = Object.prototype.hasOwnProperty;
 const hasOwn: (obj: Readonly<{...}>, prop: string) => boolean =
   // $FlowFixMe[method-unbinding]
+  /* $FlowFixMe[invalid-this-arg] Error exposed after fixing this typing
+   * unsoundness in flow */
   Object.hasOwn ?? ((obj, prop) => _hasOwnProp.call(obj, prop));
diff --git a/packages/react-native/Libraries/Animated/nodes/AnimatedStyle.js b/packages/react-native/Libraries/Animated/nodes/AnimatedStyle.js
index 3b04b8ba2835..90774a682df9 100644
--- a/packages/react-native/Libraries/Animated/nodes/AnimatedStyle.js
+++ b/packages/react-native/Libraries/Animated/nodes/AnimatedStyle.js
@@ -255,4 +255,6 @@ export default class AnimatedStyle extends AnimatedWithChildren {
 const _hasOwnProp = Object.prototype.hasOwnProperty;
 const hasOwn: (obj: Readonly<{...}>, prop: string) => boolean =
   // $FlowFixMe[method-unbinding]
+  /* $FlowFixMe[invalid-this-arg] Error exposed after fixing this typing
+   * unsoundness in flow */
   Object.hasOwn ?? ((obj, prop) => _hasOwnProp.call(obj, prop));
diff --git a/packages/react-native/Libraries/Components/ScrollView/ScrollView.js b/packages/react-native/Libraries/Components/ScrollView/ScrollView.js
index 26b01e15f3eb..5c7974f2ac30 100644
--- a/packages/react-native/Libraries/Components/ScrollView/ScrollView.js
+++ b/packages/react-native/Libraries/Components/ScrollView/ScrollView.js
@@ -1069,6 +1069,8 @@ class ScrollView extends React.Component<ScrollViewProps, ScrollViewState> {
           nodeHandle,
           nullthrows(findNodeHandle<$FlowFixMe>(this)),
           // $FlowFixMe[method-unbinding] added when improving typing for this parameters
+          /* $FlowFixMe[incompatible-type] Error exposed after fixing this
+           * typing unsoundness in flow */
           this._textInputFocusError,
           this._inputMeasureAndScrollToKeyboard,
         );
@@ -1077,6 +1079,8 @@ class ScrollView extends React.Component<ScrollViewProps, ScrollViewState> {
           this._innerView.nativeInstance,
           this._inputMeasureAndScrollToKeyboard,
           // $FlowFixMe[method-unbinding] added when improving typing for this parameters
+          /* $FlowFixMe[incompatible-type] Error exposed after fixing this
+           * typing unsoundness in flow */
           this._textInputFocusError,
         );
       }
diff --git a/packages/react-native/Libraries/Modal/Modal.js b/packages/react-native/Libraries/Modal/Modal.js
index e011fc20763e..66a9343eaa87 100644
--- a/packages/react-native/Libraries/Modal/Modal.js
+++ b/packages/react-native/Libraries/Modal/Modal.js
@@ -339,6 +339,8 @@ class Modal extends React.Component<ModalProps, ModalState> {
         identifier={this._identifier}
         style={styles.modal}
         // $FlowFixMe[method-unbinding] added when improving typing for this parameters
+        /* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+         * unsoundness in flow */
         onStartShouldSetResponder={this._shouldSetResponder}
         supportedOrientations={this.props.supportedOrientations}
         onOrientationChange={this.props.onOrientationChange}
diff --git a/packages/react-native/Libraries/Utilities/deepFreezeAndThrowOnMutationInDev.js b/packages/react-native/Libraries/Utilities/deepFreezeAndThrowOnMutationInDev.js
index 7e7b6b04a84d..1005f39f5630 100644
--- a/packages/react-native/Libraries/Utilities/deepFreezeAndThrowOnMutationInDev.js
+++ b/packages/react-native/Libraries/Utilities/deepFreezeAndThrowOnMutationInDev.js
@@ -49,6 +49,8 @@ function deepFreezeAndThrowOnMutationInDev<T extends {...} | Array<unknown>>(
 
     for (let i = 0; i < keys.length; i++) {
       const key = keys[i];
+      /* $FlowFixMe[invalid-this-arg] Error exposed after fixing this typing
+       * unsoundness in flow */
       if (hasOwnProperty.call(object, key)) {
         Object.defineProperty(object, key, {
           get: identity.bind(null, object[key]),
@@ -64,6 +66,8 @@ function deepFreezeAndThrowOnMutationInDev<T extends {...} | Array<unknown>>(
 
     for (let i = 0; i < keys.length; i++) {
       const key = keys[i];
+      /* $FlowFixMe[invalid-this-arg] Error exposed after fixing this typing
+       * unsoundness in flow */
       if (hasOwnProperty.call(object, key)) {
         deepFreezeAndThrowOnMutationInDev(object[key]);
       }
diff --git a/packages/react-native/Libraries/promiseRejectionTrackingOptions.js b/packages/react-native/Libraries/promiseRejectionTrackingOptions.js
index 95fcf1c093d0..bfabef58c8fd 100644
--- a/packages/react-native/Libraries/promiseRejectionTrackingOptions.js
+++ b/packages/react-native/Libraries/promiseRejectionTrackingOptions.js
@@ -28,9 +28,13 @@ const rejectionTrackingOptions: NonNullable<Parameters<enable>[0]> = {
       message = '';
     } else if (
       // $FlowFixMe[method-unbinding] added when improving typing for this parameters
+      /* $FlowFixMe[invalid-this-arg] Error exposed after fixing this typing
+       * unsoundness in flow */
       Object.prototype.toString.call(rejection) === '[object Error]'
     ) {
       // $FlowFixMe[method-unbinding] added when improving typing for this parameters
+      /* $FlowFixMe[invalid-this-arg] Error exposed after fixing this typing
+       * unsoundness in flow */
       message = Error.prototype.toString.call(rejection);
     } else {
       try {
diff --git a/packages/react-native/src/private/animated/createAnimatedPropsMemoHook.js b/packages/react-native/src/private/animated/createAnimatedPropsMemoHook.js
index f6657e021e37..dd02b3bef015 100644
--- a/packages/react-native/src/private/animated/createAnimatedPropsMemoHook.js
+++ b/packages/react-native/src/private/animated/createAnimatedPropsMemoHook.js
@@ -357,4 +357,6 @@ function areCompositeKeyComponentsEqual(
 const _hasOwnProp = Object.prototype.hasOwnProperty;
 const hasOwn: (obj: Readonly<{...}>, prop: string) => boolean =
   // $FlowFixMe[method-unbinding]
+  /* $FlowFixMe[invalid-this-arg] Error exposed after fixing this typing
+   * unsoundness in flow */
   Object.hasOwn ?? ((obj, prop) => _hasOwnProp.call(obj, prop));
diff --git a/packages/react-native/src/private/devsupport/devmenu/elementinspector/XHRInterceptor.js b/packages/react-native/src/private/devsupport/devmenu/elementinspector/XHRInterceptor.js
index c2c85723c169..24754c94c70e 100644
--- a/packages/react-native/src/private/devsupport/devmenu/elementinspector/XHRInterceptor.js
+++ b/packages/react-native/src/private/devsupport/devmenu/elementinspector/XHRInterceptor.js
@@ -122,6 +122,8 @@ const XHRInterceptor = {
       if (openCallback) {
         openCallback(method, url, this);
       }
+      /* $FlowFixMe[invalid-this-arg] Error exposed after fixing this typing
+       * unsoundness in flow */
       originalXHROpen.apply(this, arguments);
     };
 
@@ -136,6 +138,8 @@ const XHRInterceptor = {
       if (requestHeaderCallback) {
         requestHeaderCallback(header, value, this);
       }
+      /* $FlowFixMe[invalid-this-arg] Error exposed after fixing this typing
+       * unsoundness in flow */
       originalXHRSetRequestHeader.apply(this, arguments);
     };
 
@@ -190,6 +194,8 @@ const XHRInterceptor = {
           false,
         );
       }
+      /* $FlowFixMe[invalid-this-arg] Error exposed after fixing this typing
+       * unsoundness in flow */
       originalXHRSend.apply(this, arguments);
     };
     isInterceptorEnabled = true;
diff --git a/packages/react-native/src/private/webapis/dom/abort-api/__tests__/AbortController-itest.js b/packages/react-native/src/private/webapis/dom/abort-api/__tests__/AbortController-itest.js
index f18a34f45997..e13929b45ee0 100644
--- a/packages/react-native/src/private/webapis/dom/abort-api/__tests__/AbortController-itest.js
+++ b/packages/react-native/src/private/webapis/dom/abort-api/__tests__/AbortController-itest.js
@@ -81,6 +81,8 @@ describe('AbortController', () => {
 
   it('should be stringified as [object AbortController]', () => {
     // $FlowExpectedError[method-unbinding]
+    /* $FlowFixMe[invalid-this-arg] Error exposed after fixing this typing
+     * unsoundness in flow */
     expect(Object.prototype.toString.call(controller)).toBe(
       '[object AbortController]',
     );
@@ -171,6 +173,8 @@ describe('AbortController', () => {
 
     it('should be stringified as [object AbortSignal]', () => {
       // $FlowExpectedError[method-unbinding]
+      /* $FlowFixMe[invalid-this-arg] Error exposed after fixing this typing
+       * unsoundness in flow */
       expect(Object.prototype.toString.call(signal)).toBe(
         '[object AbortSignal]',
       );
@@ -267,6 +271,8 @@ describe('AbortController', () => {
     it("should throw a TypeError if 'this' is not an AbortController object", () => {
       expect(() => {
         // $FlowExpectedError[method-unbinding]
+        /* $FlowFixMe[invalid-this-arg] Error exposed after fixing this typing
+         * unsoundness in flow */
         controller.abort.call({});
       }).toThrow(
         "Expected 'this' to be an 'AbortController' object, but got object",
diff --git a/packages/rn-tester/IntegrationTests/TimersTest.js b/packages/rn-tester/IntegrationTests/TimersTest.js
index 1e8b608821e9..b18ce45505ce 100644
--- a/packages/rn-tester/IntegrationTests/TimersTest.js
+++ b/packages/rn-tester/IntegrationTests/TimersTest.js
@@ -99,45 +99,65 @@ class TimersTest extends React.Component<Props, State> {
 
   componentDidMount() {
     // $FlowFixMe[method-unbinding] added when improving typing for this parameters
+    /* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+     * unsoundness in flow */
     this.setTimeout(this.testSetTimeout0, 1000);
   }
 
   testSetTimeout0() {
     // $FlowFixMe[method-unbinding] added when improving typing for this parameters
+    /* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+     * unsoundness in flow */
     this.setTimeout(this.testSetTimeout1, 0);
   }
 
   testSetTimeout1() {
     // $FlowFixMe[method-unbinding] added when improving typing for this parameters
+    /* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+     * unsoundness in flow */
     this.setTimeout(this.testSetTimeout50, 1);
   }
 
   testSetTimeout50() {
     // $FlowFixMe[method-unbinding] added when improving typing for this parameters
+    /* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+     * unsoundness in flow */
     this.setTimeout(this.testRequestAnimationFrame, 50);
   }
 
   testRequestAnimationFrame() {
     // $FlowFixMe[method-unbinding] added when improving typing for this parameters
+    /* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+     * unsoundness in flow */
     this.requestAnimationFrame(this.testSetInterval0);
   }
 
   testSetInterval0() {
     // $FlowFixMe[method-unbinding] added when improving typing for this parameters
+    /* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+     * unsoundness in flow */
     this._nextTest = this.testSetInterval20;
     // $FlowFixMe[method-unbinding] added when improving typing for this parameters
+    /* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+     * unsoundness in flow */
     this._interval = this.setInterval(this._incrementInterval, 0);
   }
 
   testSetInterval20() {
     // $FlowFixMe[method-unbinding] added when improving typing for this parameters
+    /* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+     * unsoundness in flow */
     this._nextTest = this.testSetImmediate;
     // $FlowFixMe[method-unbinding] added when improving typing for this parameters
+    /* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+     * unsoundness in flow */
     this._interval = this.setInterval(this._incrementInterval, 20);
   }
 
   testSetImmediate() {
     // $FlowFixMe[method-unbinding] added when improving typing for this parameters
+    /* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+     * unsoundness in flow */
     this.setImmediate(this.testClearTimeout0);
   }
 
@@ -151,6 +171,8 @@ class TimersTest extends React.Component<Props, State> {
     const timeout = this.setTimeout(() => this._fail('testClearTimeout30'), 30);
     this.clearTimeout(timeout);
     // $FlowFixMe[method-unbinding] added when improving typing for this parameters
+    /* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+     * unsoundness in flow */
     this.setTimeout(this.testClearMulti, 50);
   }
 
@@ -169,6 +191,8 @@ class TimersTest extends React.Component<Props, State> {
     this.setTimeout(() => this.clearTimeout(delayClear), 20);
 
     // $FlowFixMe[method-unbinding] added when improving typing for this parameters
+    /* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+     * unsoundness in flow */
     this.setTimeout(this.testOrdering, 50);
   }
 
@@ -205,6 +229,8 @@ class TimersTest extends React.Component<Props, State> {
       25,
     );
     // $FlowFixMe[method-unbinding] added when improving typing for this parameters
+    /* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+     * unsoundness in flow */
     this.setTimeout(this.done, 50);
   }
 
diff --git a/private/react-native-fantom/runner/global-setup/globalTeardown.js b/private/react-native-fantom/runner/global-setup/globalTeardown.js
index 566f137677c3..cea77bda3fb9 100644
--- a/private/react-native-fantom/runner/global-setup/globalTeardown.js
+++ b/private/react-native-fantom/runner/global-setup/globalTeardown.js
@@ -50,6 +50,8 @@ async function stopMetroServer(metroServer: MetroServer): Promise<void> {
 
   // $FlowFixMe[method-unbinding] Node 18.2+ API
   if (typeof metroServer.closeIdleConnections === 'function') {
+    /* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+     * unsoundness in flow */
     metroServer.closeIdleConnections();
   }
 
@@ -57,6 +59,8 @@ async function stopMetroServer(metroServer: MetroServer): Promise<void> {
     setTimeout(() => {
       // $FlowFixMe[method-unbinding] Node 18.2+ API
       if (typeof metroServer.closeAllConnections === 'function') {
+        /* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+         * unsoundness in flow */
         metroServer.closeAllConnections();
       }
       resolve();
diff --git a/private/react-native-fantom/runtime/expect.js b/private/react-native-fantom/runtime/expect.js
index 16c78002eb9e..dbbbdbcd8b05 100644
--- a/private/react-native-fantom/runtime/expect.js
+++ b/private/react-native-fantom/runtime/expect.js
@@ -580,14 +580,24 @@ class Expect {
  * will not be added to the prototype.
  */
 // $FlowExpectedError[method-unbinding]
+/* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+ * unsoundness in flow */
 Expect.prototype.toBeCalled = Expect.prototype.toHaveBeenCalled;
 // $FlowExpectedError[method-unbinding]
+/* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+ * unsoundness in flow */
 Expect.prototype.toBeCalledTimes = Expect.prototype.toHaveBeenCalledTimes;
 // $FlowExpectedError[method-unbinding]
+/* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+ * unsoundness in flow */
 Expect.prototype.toBeCalledWith = Expect.prototype.toHaveBeenCalledWith;
 // $FlowExpectedError[method-unbinding]
+/* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+ * unsoundness in flow */
 Expect.prototype.lastCalledWith = Expect.prototype.toHaveBeenLastCalledWith;
 // $FlowExpectedError[method-unbinding]
+/* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+ * unsoundness in flow */
 Expect.prototype.nthCalledWith = Expect.prototype.toHaveBeenNthCalledWith;
 
 const expect: unknown => Expect = (received: unknown) => new Expect(received);
diff --git a/private/react-native-fantom/runtime/patchWeakRef.js b/private/react-native-fantom/runtime/patchWeakRef.js
index 63a6842e63ba..61191479f8be 100644
--- a/private/react-native-fantom/runtime/patchWeakRef.js
+++ b/private/react-native-fantom/runtime/patchWeakRef.js
@@ -38,6 +38,8 @@ export default function patchWeakRef(): void {
       );
     }
 
+    /* $FlowFixMe[invalid-this-arg] Error exposed after fixing this typing
+     * unsoundness in flow */
     return originalDeref.call(this);
   };
 
diff --git a/private/react-native-fantom/src/__tests__/expect-itest.js b/private/react-native-fantom/src/__tests__/expect-itest.js
index 3bc828363a53..c802ef0cccd1 100644
--- a/private/react-native-fantom/src/__tests__/expect-itest.js
+++ b/private/react-native-fantom/src/__tests__/expect-itest.js
@@ -545,6 +545,8 @@ describe('expect', () => {
     });
 
     it('tracks execution of methods with an implementation', () => {
+      /* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+       * unsoundness in flow */
       const fn = jest.fn(function (this: {prop: number}): number {
         return this.prop;
       });
@@ -569,6 +571,8 @@ describe('expect', () => {
     });
 
     it('tracks constructors with an implementation', () => {
+      /* $FlowFixMe[incompatible-type] Error exposed after fixing this typing
+       * unsoundness in flow */
       const fn = jest.fn(function (this: {prop: number}) {
         this.prop = 3;
       });