### Preflight Checklist

- [X] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
- [X] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/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 feature request that matches the one I want to file, without success.

### Electron Version

12.0.5

### What operating system are you using?

macOS

### Operating System Version

11.2.3

### What arch are you using?

arm64 (including Apple Silicon)

### Last Known Working Electron version

_No response_

### Expected Behavior

`document.hasFocus()` is only `true` for the window that has focus.

### Actual Behavior

Ever window reports `document.hasFocus()` to be `true` right after opening.

### Testcase Gist URL

https://gist.github.com/16e6fc829febd0cab115dfd0850a31be

### Additional Information

_No response_
shell/browser/api/electron_api_web_contents.h
void DevToolsReloadPage() override;
  
  void DevToolsFocused() override;
  void DevToolsOpened() override;
  void DevToolsClosed() override;
  void DevToolsResized() override;
  ElectronBrowserContext* GetBrowserContext() const;
  void OnElectronBrowserConnectionError();
#if BUILDFLAG(ENABLE_OSR)
  OffScreenWebContentsView* GetOffScreenWebContentsView() const;
  OffScreenRenderWidgetHostView* GetOffScreenRenderWidgetHostView() const;
#endif
  
  
  void OnGetZoomLevel(content::RenderFrameHost* frame_host,
                      IPC::Message* reply_msg);
  void InitZoomController(content::WebContents* web_contents,
                          const gin_helper::Dictionary& options);
  
  bool CanOverscrollContent() override;
  content::ColorChooser* OpenColorChooser(
      content::WebContents* web_contents,
      SkColor color,
      const std::vector<blink::mojom::ColorSuggestionPtr>& suggestions)
      override;
  std::unique_ptr<content::EyeDropper> OpenEyeDropper(
      content::RenderFrameHost* frame,
      content::EyeDropperListener* listener) override;
  void RunFileChooser(content::RenderFrameHost* render_frame_host,
                      scoped_refptr<content::FileSelectListener> listener,