### 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/native_window_mac.h
void SetContentProtection(bool enable) override;
  void SetFocusable(bool focusable) override;
  bool IsFocusable() override;
  void AddBrowserView(NativeBrowserView* browser_view) override;
  void RemoveBrowserView(NativeBrowserView* browser_view) override;
  void SetTopBrowserView(NativeBrowserView* browser_view) override;
  void SetParentWindow(NativeWindow* parent) override;
  content::DesktopMediaID GetDesktopMediaID() const override;
  gfx::NativeView GetNativeView() const override;
  gfx::NativeWindow GetNativeWindow() const override;
  gfx::AcceleratedWidget GetAcceleratedWidget() const override;
  NativeWindowHandle GetNativeWindowHandle() const override;
  void SetProgressBar(double progress, const ProgressState state) override;
  void SetOverlayIcon(const gfx::Image& overlay,
                      const std::string& description) override;
  void SetVisibleOnAllWorkspaces(bool visible,
                                 bool visibleOnFullScreen,
                                 bool skipTransformProcessType) override;
  bool IsVisibleOnAllWorkspaces() override;
  void SetAutoHideCursor(bool auto_hide) override;
  void SetVibrancy(const std::string& type) override;
  void SetWindowButtonVisibility(bool visible) override;
  bool GetWindowButtonVisibility() const override;
  void SetTrafficLightPosition(base::Optional<gfx::Point> position) override;
  base::Optional<gfx::Point> GetTrafficLightPosition() const override;
  void RedrawTrafficLights() override;
  void UpdateFrame() override;
  void SetTouchBar(
      std::vector<gin_helper::PersistentDictionary> items) override;
  void RefreshTouchBarItem(const std::string& item_id) override;