### 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

14.0.0-beta.18

### What operating system are you using?

Other Linux

### Operating System Version

Fedora 34

### What arch are you using?

x64

### Last Known Working Electron version

13.1.8

### Expected Behavior

Frameless windows should have mouse interaction, similar to regular windows.

### Actual Behavior

Every single regular mouse event is completely ignored, on all levels thinkable. Selection doesn't work, double-clicking doesn't, input fields don't work, and even custom events on the window/body don't fire at all.. The keyboard does work as expected, so the app is not frozen and hasn't crashed.

### Testcase Gist URL

_No response_

### Additional Information

No gist needed, just add `"frame": false` to any basic electron app to break all mouse functionality when using the latest beta.
shell/browser/native_window_views.cc
int menu_bar_height = root_view_->GetMenuBarHeight();
    extensions::SizeConstraints constraints = GetContentSizeConstraints();
    if (constraints.HasMinimumSize()) {
      gfx::Size min_size = constraints.GetMinimumSize();
      min_size.set_height(min_size.height() + menu_bar_height);
      constraints.set_minimum_size(min_size);
    }
    if (constraints.HasMaximumSize()) {
      gfx::Size max_size = constraints.GetMaximumSize();
      max_size.set_height(max_size.height() + menu_bar_height);
      constraints.set_maximum_size(max_size);
    }
    SetContentSizeConstraints(constraints);
    
    SetContentSize(content_size);
  }
}
void NativeWindowViews::AddBrowserView(NativeBrowserView* view) {
  if (!content_view())
    return;
  if (!view) {
    return;
  }
  add_browser_view(view);
  if (view->GetInspectableWebContentsView())
    content_view()->AddChildView(
        view->GetInspectableWebContentsView()->GetView());
}
void NativeWindowViews::RemoveBrowserView(NativeBrowserView* view) {