I have a nice laptop, with a 3k display. I plug it to a normal screen, with a 1080p display. What happens? Well, it works but it looks like ass. Wanna fix it? Sure, just google around for 2 hours until you find a complicated xrandr command that you have to run every time on startup (but the OS will break every time you unplug the screen). Also, high DPI support is still garbage, which means that half the apps will have their text looking too small anyway.
So no, I don't consider it an "edge case" if everyone in the office with a Linux laptop has the same problem