### 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_browser_window.cc
#include "shell/browser/api/electron_api_browser_window.h"
#include <memory>
#include "base/threading/thread_task_runner_handle.h"
#include "content/browser/renderer_host/render_widget_host_impl.h"  
#include "content/browser/renderer_host/render_widget_host_owner_delegate.h"  
#include "content/browser/web_contents/web_contents_impl.h"  
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_view_host.h"
#include "shell/browser/api/electron_api_web_contents_view.h"
#include "shell/browser/browser.h"
#include "shell/browser/native_browser_view.h"
#include "shell/browser/unresponsive_suppressor.h"
#include "shell/browser/web_contents_preferences.h"
#include "shell/browser/window_list.h"
#include "shell/common/color_util.h"
#include "shell/common/gin_helper/constructor.h"
#include "shell/common/gin_helper/dictionary.h"
#include "shell/common/gin_helper/object_template_builder.h"
#include "shell/common/node_includes.h"
#include "shell/common/options_switches.h"
#include "ui/gl/gpu_switching_manager.h"
namespace electron {
namespace api {
BrowserWindow::BrowserWindow(gin::Arguments* args,