I work with Ubuntu 8h a day, and I also play one Windows game using Proton. And I think Linux is pretty usable, if you know what you're doing.
But Ubuntu is way behind Windows and Mac OS in native functionality, some issues are hard to solve, the terminal will be needed sooner or later even for trivial stuff, and some basic stuff is nearly impossible to do (try using a token certificate to sign a document in both; in Windows it's plug and play, I still haven't solved it in Ubuntu).
I'll still migrate my home PC fully to Ubuntu, as I don't trust Microsoft anymore, and I can overcome these limitations to make it my main OS. But that is hardly acceptable for the average user.
My point is: Linux needs a lot more care from devs to reach a wider user base, not only tech enthusiasts but regular people.
(Last comment: open a file explorer window, and click on the address bar. Does it edit the path as a user would expect, or does it do something else incomprehensible for 2024?)