'just doesn't work' and 'doesn't just work' are two very different statements. You said the former, but I've only spotted people saying the latter in here.

Also if you have to argue with someone that linux does work for them, you've missed the point.

Ah yes you're right, I did misread that.

Are you actually seriously of the belief that Linux ‘just works’ for most use cases or people, and there is a small minority for whom it doesn’t?

The implication being that it doesn't just work for them. They know that, that's why they asked if they'd personally tried Linux lately. Nobody cares if it "just works" for your grandma or whatever, because that doesn't help them at all.