Because I sometimes use ArcMap, I run Windows.
I run Windows because it's easy to get third-party maintenance for Windows or Mac, and Windows is easier to tune.
Cygwin plus the sam editor make me feel at home.
Ditto, except I don't like TUI editors, so I use `ex` and drop into `vi' mode when I need to bounce on the % key when doing Lisp. The benefits of `sam -d` over `ex` aren't big enough to justify changing years of habit.
The main signs of Microsoft are the desktop, Bing, File Explorer and Task Manager.
I use both Edge/Bing and Chrome/Google depending on what's integrated with them.