I believe (if I understand what you mean correctly) that the file system behaviour is also a Linux thing. Deleting a file that is open is completely fine in Linux.
I think UX between the three OSs is almost completely a matter of habit and familiarity these days. I for one can't see how anyone can be productive with the (what I believe is abysmal) window management on a Mac but millions of people like it so I'd probably get used to it if I wanted to.