Of course, but by just saying Linux you're bound to be wrong somewhere - I'm just highlighting its so broad its an essentially useless definition (42% of all computers run it by the way). Gnome is pretty shit for customisability, so what's more customisable than having another option?
By looking at 'just Linux' you couldn't be more wrong for the core argument.
It also shifts the blame to many smaller devs like matrix which tbh they're mostly doing work for free so who's gonna complain they don't want to add extra complexity, just get in that source code if you really care. And in the age of such easy frontend engines an experienced could probably whip up their own in a week.
Also ive never had issues with qt/flatpaks, using prism launcher as an example, its seamlessly followed my color scheme (not saying bugs don't exist somewhere I'm not seeing, but there certainly is 'just works support to some degree).
I you're gonna be mad people don't like something, yikes open source isn't for you - git as a whole all but is designed to handle disagreements without breaking its stride.
A sorta micro VPS per game swarm can be made locally, and other pretty specific use cases but in theory could build up things like parsec arcade in a Foss way