Then again, how many examples are there for things that should “just work” and do on Linux but don’t on Windows?
Maybe some but much, much fewer. It shouldn't be surprising - Microsoft has hundreds if not thousands of people hired specifically for creating working UX and design. Linux just can't compete with that since it's mostly developers working on it and, again, developers unfortunately make for awful UX designers.
I don't think external monitors or a responsive UI is a matter of "perspective". These are things that should just work, always, for everyone.
What are the examples you are thinking of btw?