I’m a teacher and our division just “upgraded” to W11 with a new version of outlook that is basically a web app on desktop. Several times a day my laptop comes to a complete crawl while Teams decides to open itself. Can’t open or close programs, Firefox won’t register mouse clicks, nothing. Graphical glitches appear al the time with menu bars and task bars disappearing regularly, requiring force quitting the app or logging out of the desktop.
When I first switched to Linux I assumed my experience would be like this. But now it’s the other way around.
Rant over.
That's mostly down to Teams though (being the bloated web app that it is), and not the underlying operating system.
I think, it's both.