The malware is there regardless, this is about Linux marketshare. You can dislike it (and I do) without gatekeeping your favourite operating system because people want to run software on it that you don't approve of.
The problem with anti-cheat software is that it needs extremely high permissions. It wants to inspect every process, take screenshots etc. It's pretty extreme stuff.
And the stupid thing is that a lot of games install this software regardless of whether you actually play online or not! I've even had some games that insisted I enable Valve Anti Cheat and refuse to launch otherwise, even though I just wanted to play single player (I rarely play online). That check should obviously come into play only at the multiplayer menu.
But this is actually why I still game on Windows. I just have one Windows box which I use for gaming and gaming alone. I don't want this crap on my Linux and FreeBSD computers I do serious work on. So I won't be one of those Linux users in the stats :) Even though I use it daily.
But that is the nature of exploits. They often operate outside of a program modyfing its memory, applying visual aid etc.
Thus permissions like that are kind of required. Now, you can dispute if some random online lobby should perhaps have an option of "i dont care". However large group of gamers does care, especially in more competetive games as league of legends, csgo etc.
The trouble is it will be opaque and now I have to worry about one more opaque dystopic thing when installing games over Steam. I'll consider it Valve's transgression against me if they let me install anti-cheat malware without warning me any less strongly than screaming at me.
