diff --git a/packages/react-native/React/Base/UIKitProxies/RCTWindowSafeAreaProxy.mm b/packages/react-native/React/Base/UIKitProxies/RCTWindowSafeAreaProxy.mm
index 057edaa6713..440514a5088 100644
--- a/packages/react-native/React/Base/UIKitProxies/RCTWindowSafeAreaProxy.mm
+++ b/packages/react-native/React/Base/UIKitProxies/RCTWindowSafeAreaProxy.mm
@@ -34,7 +34,7 @@
   std::lock_guard<std::mutex> lock(_mutex);
   if (!_isObserving) {
     _isObserving = YES;
-    _currentSafeAreaInsets = [UIApplication sharedApplication].delegate.window.safeAreaInsets;
+    _currentSafeAreaInsets = RCTKeyWindow().safeAreaInsets;
     [[NSNotificationCenter defaultCenter] addObserver:self
                                              selector:@selector(_interfaceFrameDidChange)
                                                  name:RCTUserInterfaceStyleDidChangeNotification
@@ -64,7 +64,7 @@
 - (void)_interfaceFrameDidChange
 {
   std::lock_guard<std::mutex> lock(_mutex);
-  _currentSafeAreaInsets = [UIApplication sharedApplication].delegate.window.safeAreaInsets;
+  _currentSafeAreaInsets = RCTKeyWindow().safeAreaInsets;
 }
 
 @end
diff --git a/packages/react-native/React/CoreModules/RCTDeviceInfo.mm b/packages/react-native/React/CoreModules/RCTDeviceInfo.mm
index 8761904c55b..6b4fcef8522 100644
--- a/packages/react-native/React/CoreModules/RCTDeviceInfo.mm
+++ b/packages/react-native/React/CoreModules/RCTDeviceInfo.mm
@@ -209,11 +209,10 @@ static NSDictionary *RCTExportedDimensions(CGFloat fontScale)
 - (void)interfaceOrientationDidChange
 {
 #if TARGET_OS_IOS && !TARGET_OS_MACCATALYST
-  UIApplication *application = RCTSharedApplication();
-  UIInterfaceOrientation nextOrientation = RCTKeyWindow().windowScene.interfaceOrientation;
+  UIWindow *keyWindow = RCTKeyWindow();
+  UIInterfaceOrientation nextOrientation = keyWindow.windowScene.interfaceOrientation;
 
-  BOOL isRunningInFullScreen =
-      CGRectEqualToRect(application.delegate.window.frame, application.delegate.window.screen.bounds);
+  BOOL isRunningInFullScreen = CGRectEqualToRect(keyWindow.frame, keyWindow.screen.bounds);
   // We are catching here two situations for multitasking view:
   // a) The app is in Split View and the container gets resized -> !isRunningInFullScreen
   // b) The app changes to/from fullscreen example: App runs in slide over mode and goes into fullscreen->
diff --git a/packages/react-native/React/CoreModules/RCTRedBox.mm b/packages/react-native/React/CoreModules/RCTRedBox.mm
index d427c053cda..fb057b96921 100644
--- a/packages/react-native/React/CoreModules/RCTRedBox.mm
+++ b/packages/react-native/React/CoreModules/RCTRedBox.mm
@@ -222,7 +222,7 @@
 #if TARGET_OS_MACCATALYST
   return 0;
 #else
-  return RCTSharedApplication().delegate.window.safeAreaInsets.bottom;
+  return RCTKeyWindow().safeAreaInsets.bottom;
 #endif
 }