After running Linux (plain, crappy boring Ubuntu) as my daily driver for the last few years, I'm convinced that we're at the point where the only real barrier to wider adoption is software, and this is less and less of an issue the more we work in the browser.
For your basic user, it's performant, simple, stable, and does everything a computer needs. Every time I boot up Windows it takes forever, I find that a new update that further fills my machine with crap requires a restart, I get super weird "news" and advertising thrown at me. I have no idea how normies put up with this.