### Godot version

Master (0ddd9c3e8f9088fa139e25b2903289d727073e12)

### System information

PopOS 22.04 - Intel integrated graphics - all backends

### Issue description

When there are popup windows in the editor, I cannot click on the "Confirm"/"Cancel" type buttons at the button. 

I have the issue both in the project manager (importing projects I can click on files etc. but cannot click "open") and when running the editor (cannot click "Save&Quit" etc.)

Sometimes the editor correctly highlights the buttons and I can use the arrow keys to navigate the buttons and "enter" to confirm my selection.

_I can navigate the editor closing dialogue with tab/arrow keys_
![Screenshot from 2023-01-16 14-24-06](https://user-images.githubusercontent.com/16521339/212774269-d784ea5e-5921-4460-9124-48978939c8e7.png)

_I can't navigate the project import dialogue with tab/arrow keys_
![Screenshot from 2023-01-16 14-29-00](https://user-images.githubusercontent.com/16521339/212774683-0a80795a-eed4-4e65-b2ca-3562c25d71fd.png)


### Steps to reproduce

Run the editor

### Minimal reproduction project

Reproducible in the project manager
} break;
	}
	switch (p_mode) {
		case WINDOW_MODE_WINDOWED: {
			
		} break;
		case WINDOW_MODE_MINIMIZED: {
			_set_wm_minimized(p_window, true);
		} break;
		case WINDOW_MODE_EXCLUSIVE_FULLSCREEN:
		case WINDOW_MODE_FULLSCREEN: {
			wd.last_position_before_fs = wd.position;
			if (window_get_flag(WINDOW_FLAG_ALWAYS_ON_TOP, p_window)) {
				_set_wm_maximized(p_window, true);
			}
			wd.fullscreen = true;
			if (p_mode == WINDOW_MODE_EXCLUSIVE_FULLSCREEN) {
				wd.exclusive_fullscreen = true;
				_set_wm_fullscreen(p_window, true, true);
			} else {
				wd.exclusive_fullscreen = false;
				_set_wm_fullscreen(p_window, true, false);
			}
		} break;
		case WINDOW_MODE_MAXIMIZED: {
			_set_wm_maximized(p_window, true);
		} break;
	}
}
DisplayServer::WindowMode DisplayServerX11::window_get_mode(WindowID p_window) const {