### Godot version

4.0.3.stable

### System information

windows 11

### Issue description

fullscreen on the window node is not working and will show up as a windowed.

### Steps to reproduce

disable Embed Subwindows in Project Settings/Display/Window.
create a window node and set its mode to fullscreen.

### Minimal reproduction project

[fullscreen.zip](https://github.com/godotengine/godot/files/11821834/fullscreen.zip)
if (is_inside_tree() && wrap_controls) {
		child_controls_changed();
	}
}
void Window::remove_child_notify(Node *p_child) {
	if (is_inside_tree() && wrap_controls) {
		child_controls_changed();
	}
}
void Window::set_theme_owner_node(Node *p_node) {
	ERR_MAIN_THREAD_GUARD;
	theme_owner->set_owner_node(p_node);
}
Node *Window::get_theme_owner_node() const {
	ERR_READ_THREAD_GUARD_V(nullptr);
	return theme_owner->get_owner_node();
}
bool Window::has_theme_owner_node() const {