I just switched to a 4K monitor last week. Set display scaling to 1.5x in the KDE settings, logged in again, and everything looks great and scales cleanly. I ha

I just switched to a 4K monitor last week. Set display scaling to 1.5x in the KDE settings, logged in again, and everything looks great and scales cleanly. I haven't noticed any weird artifacts or bizarre UIs yet. It just works. Except Spotify, that needs a command line flag to set the scale factor, but that app is well known to be half-assed on Linux (they also don't support input methods, so searching for Japanese songs is a copy and paste exercise) and that's not Linux's fault. AIUI the nvidia drivers are a lot better these days, but most Linux users, myself included, know to stay away from nvidia unless you have very good reasons not to. AMD cards work beautifully.