### 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
FullScreenTransitionState fullscreen_transition_state_ =
      FullScreenTransitionState::NONE;
  NSInteger attention_request_id_ = 0;  
  
  NSApplicationPresentationOptions kiosk_options_;
  
  TitleBarStyle title_bar_style_ = TitleBarStyle::kNormal;
  
  VisualEffectState visual_effect_state_ = VisualEffectState::kFollowWindow;
  
  
  base::Optional<bool> window_button_visibility_;
  
  bool maximizable_ = true;
  
  bool always_simple_fullscreen_ = false;
  bool is_simple_fullscreen_ = false;
  bool was_maximizable_ = false;
  bool was_movable_ = false;
  NSRect original_frame_;
  NSInteger original_level_;
  NSUInteger simple_fullscreen_mask_;
  std::string vibrancy_type_;
  
  NSApplicationPresentationOptions simple_fullscreen_options_;
  DISALLOW_COPY_AND_ASSIGN(NativeWindowMac);
};
}  
#endif