### Godot version

2992ffd25523cb8b3e0ef1b873c40115b8940178

### System information

Windows 10

### Issue description

Godot crashes randomly within a few seconds after project start when moving with the mouse.

![win_err](https://github.com/godotengine/godot/assets/52464204/1da28596-d95b-40f3-b32f-12219ec02c5d)

Started after recent merge of https://github.com/godotengine/godot/pull/67791.
I can confirm that reverting the pr fixes the crashes.

### Steps to reproduce

see desc

### Minimal reproduction project

N/A
DisplayServer::get_singleton()->window_set_rect_changed_callback(callable_mp(this, &Window::_rect_changed_callback), window_id);
	DisplayServer::get_singleton()->window_set_window_event_callback(callable_mp(this, &Window::_event_callback), window_id);
	DisplayServer::get_singleton()->window_set_input_event_callback(callable_mp(this, &Window::_window_input), window_id);
	DisplayServer::get_singleton()->window_set_input_text_callback(callable_mp(this, &Window::_window_input_text), window_id);
	DisplayServer::get_singleton()->window_set_drop_files_callback(callable_mp(this, &Window::_window_drop_files), window_id);
}
Viewport *Window::get_embedder() const {
	ERR_READ_THREAD_GUARD_V(nullptr);
	Viewport *vp = get_parent_viewport();
	while (vp) {
		if (vp->is_embedding_subwindows()) {
			return vp;
		}
		if (vp->get_parent()) {
			vp = vp->get_parent()->get_viewport();
		} else {
			vp = nullptr;
		}
	}
	return nullptr;
}
void Window::_notification(int p_what) {