### 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
_send_window_event(windows[window_id], WINDOW_EVENT_CLOSE_REQUEST);
				}
				else if ((unsigned int)event.xclient.message_type == (unsigned int)xdnd_enter) {
					
					xdnd_version = (event.xclient.data.l[1] >> 24);
					Window source = event.xclient.data.l[0];
					bool more_than_3 = event.xclient.data.l[1] & 1;
					if (more_than_3) {
						Property p = _read_property(x11_display, source, XInternAtom(x11_display, "XdndTypeList", False));
						requested = pick_target_from_list(x11_display, (Atom *)p.data, p.nitems);
						XFree(p.data);
					} else {
						requested = pick_target_from_atoms(x11_display, event.xclient.data.l[2], event.xclient.data.l[3], event.xclient.data.l[4]);
					}
				} else if ((unsigned int)event.xclient.message_type == (unsigned int)xdnd_position) {
					
					
					XClientMessageEvent m;
					memset(&m, 0, sizeof(m));
					m.type = ClientMessage;
					m.display = event.xclient.display;
					m.window = event.xclient.data.l[0];
					m.message_type = xdnd_status;
					m.format = 32;
					m.data.l[0] = windows[window_id].x11_window;
					m.data.l[1] = (requested != None);
					m.data.l[2] = 0; 
					m.data.l[3] = 0;
					m.data.l[4] = xdnd_action_copy;
					XSendEvent(x11_display, event.xclient.data.l[0], False, NoEventMask, (XEvent *)&m);