I'd guess in Wayland the compositor would be responsible for handling such issues. I could readily see different filter profiles for different applications. S

I'd guess in Wayland the compositor would be responsible for handling such issues. I could readily see different filter profiles for different applications. Some of which render, and take input ques, at scaled resolutions. What I hate a LOT more are games and applications that make any sort of connection between Pixel Aspect Ratio and a display resolution.