I just wondered. Everyone recommends linux to me. I asked to get the idea. Not a criticism.

- historically unix/linux is nicer to process data as you want (linux shells + grep / sed / awk .. ), windows only recently got a workable shell.

- most if not all oss languages run on linux

- git used to be way faster for linux (may have changed since)

- programmers tend to enjoy system they can own, less the case on windows unless you work against the system (made for non tech saavy users)