[deltron3030]

> The UI/UX of Linux has come a long way since then, but the UI/UX could be optimized further. What is wrong with it?

Only details. Inconsistent layout, spacing, fonts and icons, animations that don't help and introduce artificial weight and sluggishness. It seems like there isn't much time spend with prototyping, maybe because the prototyping tools didn't exist on Linux (now you can use Figma and others in the browser), and most devs won't switch to Macs for Linux UI design out of pride.

Transitions and stuff like that are tricky, if your UI framework can't handle non linear transitions, better ignore them completely, linearity doesn't work out and will always feel slower and of lesser quality as rendering as fast as possible, or perfectly dialed in non linearity.