Apart from Android, MacOS is also based on Unix (not Linux).
But yeah, Linux is a great desktop OS. The only problem is that the majority of games are still only released for Windows. If that wasn't the case, I would get rid of Windows completely. At the moment, I am dual-booting.
I have no idea what I'm going to do when Win 7 expires, because Windows 10 is a privacy nightmare, and I have no desire to use it whatsoever.