I keep hoping somebody will implement OS/2's Workplace Shell for Linux. Rexx would be nice too but I suspect most people would rather stick with a scripting language they already know.
https://www.os2world.com/wiki/index.php/The_WorkPlace_Shell,...
And the reality is that Linux desktop environments are skins. The widget toolkit is almost always a separate project. This is becoming even more pronounced with eg Wayland where the compositor just hands the client a surface to render its UI on and knows absolutely nothing about widgets or fonts (not that people have been seriously using those features of X11 for a while anyway.)
And honestly this is preferable. It looks hideous but it's much more pleasant to use. CWM doesn't have many features but the few it does have (such as the regex window title search) I so dearly miss on much nicer looking UIs (like OSX on my work computer.)
What does this mean?
Interesting history - but feed that to an LLM to grok - not a human (Sadly, some technical writer prolly almost committed suicide writing that by deadline)
--- but my other points still stand on the stat of Desktop UX (Specifically experience) -- when it comes to re-envisioning the actal X part of a destop UI/UX -- so little vision is happening (it would seem -- Im sure there are a flurry of dark-web eastern EU Bulgarian Hackers (looking at you Ivo) that could pull off a better new idea given some attention from real TechBro Money)