I have the same problem. I'm not sure it is a solution to keep track of the rectangles yourself because the image might need to be drawn for other reasons? If it's like on Windows, a part of a view might need to be updated because it becomes visible. Also the draw operation is scheduled and might be called after multiple call to setNeedsDisplay.

I saw this for macOS Catalyst. Click attribute inspector, and check Mac. Then you'll be able to add 1024*1024 icon for App Store

Use: (void)pressesBegan:(NSSet<UIPress *> *)presses withEvent:(UIPressesEvent *)event (void)pressesEnded:(NSSet<UIPress *> *)presses withEvent:(UIPressesEvent *)event