### Preflight Checklist

- [X] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/main/CONTRIBUTING.md) for this project.
- [X] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/main/CODE_OF_CONDUCT.md) that this project adheres to.
- [X] I have searched the [issue tracker](https://www.github.com/electron/electron/issues) for a bug report that matches the one I want to file, without success.

### Electron Version

18.0.3

### What operating system are you using?

Windows

### Operating System Version

Windows 10

### What arch are you using?

x64

### Last Known Working Electron version

18.0.0

### Expected Behavior

After entering and exiting fullscreen from an iframe and then focusing the parent page, <kbd>Escape</kbd> key events should be delivered to the parent page.

### Actual Behavior

<kbd>Escape</kbd> key events seem not to be delivered to the page after exiting fullscreen.

https://user-images.githubusercontent.com/172800/162848678-c067d18a-e323-49ea-a6b3-f1526149cad1.mp4




### Testcase Gist URL

https://gist.github.com/bc382eeeb368b70fbed1e177bcaacfde

### Additional Information

This only reproduces on Windows, not on macOS.

Also, this only reproduces when _clicking_ the "exit fullscreen" button in the YouTube embed. Pressing <kbd>Esc</kbd> to exit fullscreen allows the parent page to receive subsequent key events.

18.0.0 - not reproducible
18.0.1 - reproducible
18.0.2 - reproducible
18.0.3 - reproducible

This seems likely to be related to https://github.com/electron/electron/pull/32369. cc @codebytere 
shell/browser/api/electron_api_web_contents.cc
#endif
   Don't focus content after subframe navigations.
  if (!navigation_handle->IsInMainFrame())
    return;
   Only focus for top-level contents.
  if (type_ != Type::kBrowserWindow)
    return;
  ontents()->SetInitialFocus();
}
void WebContents::DidFinishNavigation(
    content::NavigationHandle* navigation_handle) {
  if (owner_window_) {
    owner_window_->NotifyLayoutWindowControlsOverlay();
  }
  if (!navigation_handle->HasCommitted())
    return;
  bool is_main_frame = navigation_handle->IsInMainFrame();
  content::RenderFrameHost* frame_host =
      navigation_handle->GetRenderFrameHost();
  int frame_process_id = -1, frame_routing_id = -1;
  if (frame_host) {
    frame_process_id = frame_host->GetProcess()->GetID();
    frame_routing_id = frame_host->GetRoutingID();
  }
  if (!navigation_handle->IsErrorPage()) {
     FIXME: All the Emit() calls below could potentially result in |this|
     being destroyed (by JS listening for the event and calling
     webContents.destroy()).
    auto url = navigation_handle->GetURL();
    bool is_same_document = navigation_handle->IsSameDocument();