But some or majority do use Home version. Metered connection is more of a trick than actual off switch for auto updates (bad UI). It means that you have to lie to turn it off, because most people don’t have metered connection (I assume).

You can blame Microsoft for making it’s OS default on most desktop machines and therefore most devs are making games specifically for this proprietary OS. Steam is doing it’s best to make more and more games available on Linux. Almost all games that I have are perfectly playable on Linux.