> Linux isn't in position regarding display/UI. It doesn't handles HiDPI (e.g 4K) screen uniformly, leading to a lot of blurry apps depending on the display abstraction used (Wayland/X11) and compositor (GNOME, KDE, etc, all behave differently).

I have been using a 4K display for years on Linux without issues. The scaling issue with non-native apps is a problem that Windows also struggles with btw.