I got an espresso machine last year. I was looking for a grinder. A huge chunk of online coffee folks suggested buying a weird grinder from China and swapping out burr sets and and and and ... and all I wanted was a turnkey grinder. I just wanted coffee. I didn't need to make a hobby of the equipment itself.
This also exists with motorcycles. I just want to ride a motorcycle. I don't have any interest in the endless mod culture of motorcycles.
And so Linux on the desktop. Linux on the desktop is great if you enjoy having to actively sysadmin your work environment, but it's shit if you just want to get some work done. The people who run it full time are people, mostly, who like the hacking part of the hobby in addition to the using part of the hobby. And I don't see that changing.
There was definitely a window in the late 90s when this could've been different, but then Apple moved to OS X, and I think that window closed forever.