Dragging Mariani window from 120Hz display to 60Hz display might not work

[sh95014]

Describe the bug
EmulatorViewController.mm runs a display link tied to the display of the main window:

CVDisplayLinkCreateWithActiveCGDisplays(&_displayLink);
CVDisplayLinkSetOutputCallback(self.displayLink, &MyDisplayLinkCallback, (__bridge void *)self);
CGDirectDisplayID viewDisplayID =
    (CGDirectDisplayID) [self.view.window.screen.deviceDescription[@"NSScreenNumber"] unsignedIntegerValue];
CVDisplayLinkSetCurrentCGDisplay(_displayLink, viewDisplayID);
CVDisplayLinkStart(self.displayLink);

and does not do anything if the main window is moved to another display with a different refresh rate. Don't have the appropriate hardware and haven't tried to see what would happen.

[sh95014]

https://developer.apple.com/videos/play/wwdc2023/10054/?time=720