My boring regular-ass take about Linux adoption is this: it aint for everyone and that’s totally fine.
Why don’t more people use it? Let’s be honest, Linux asks way more of you than MacOS or Windows does. That’s a tall barrier to entry for many people.
I use MacOS, because I don’t want to think about my OS any more than I have to. But I run Linux on every server I touch, because I don’t want to have to think about my servers any more than I have to :P
I dunno, maybe next year will be the year of Linux on the Desktop