### 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.h
bool transparent_ = false;
  
  extensions::SizeConstraints size_constraints_;
  
  bool enable_larger_than_screen_ = false;
  
  bool is_closed_ = false;
  
  
  double sheet_offset_x_ = 0.0;
  double sheet_offset_y_ = 0.0;
  
  
  double aspect_ratio_ = 0.0;
  gfx::Size aspect_ratio_extraSize_;
  
  NativeWindow* parent_ = nullptr;
  
  bool is_modal_ = false;
  
  std::list<NativeBrowserView*> browser_views_;
  
  base::ObserverList<NativeWindowObserver> observers_;
  
  std::u16string accessible_title_;
  base::WeakPtrFactory<NativeWindow> weak_factory_{this};
  DISALLOW_COPY_AND_ASSIGN(NativeWindow);
};
class NativeWindowRelay