Re: It can go both ways
You do not know many mid size companies or have any idea just how widespread Linux is in the world, and you are clearly unaware that most network hardware e.g. switches, routers etc run Linux also not to mention Android, and my favourite - just about the whole of the Top 500 list of supercomputers!
https://en.wikipedia.org/wiki/Usage_share_of_operating_systems
Windows (server) is disappearing because it is crappy - good riddance!