It needs more people willing to pay software developers, UX designers and testers to improve the Linux desktop, starting with the kernel, graphics drivers, ending in consistent set of apps. This is a (ten) billion dollar endeavor.

I appreciate the sentiment, but I'm not a UX designer or expert. And the problem is not that Linux doesn't have enough UI developers, it's that many of them are working on re-inventing the wheel in different, competing ways. Linux needs a dictatorial BDFL for UI - a Linus Torvalds for the desktop - an idea somewhat antithetical to the distributed nature of open source development.

It doesn't help that organizations that could be leading the charge keep changing direction. Ubuntu went Gnome -> Unity -> Gnome in the span of 15 years or so. And now they're going in hard on Snaps, which introduces breaks in UI uniformity again (Gnome Themes, for example[1]).

[1] https://www.omgubuntu.co.uk/2020/10/automatic-theme-installa...