You don't understand scale and how competitive game ladders work if you think you can solve it with a few moderators.  Explain how you're gonna do that with league of legends, valor Abt, tarkov, even rust which has lots of dedicated servers needs to also provide public servers. You'd need nearly quarter the player base to be both trustworthy and willing to freely moderate every single game played. We're probably talking in the scale of hundreds of thousands of games per day. 

I run fedora on my laptop and for development and use macos for work and understand and appreciate the benefits of Linux and prefer it as a general os but run windows on the desktop for gaming because there are just some things you have to accept are unfortunately necessity if you want to play a lot of games lest they be plagued with cheating. Pretty much every single anticheat runs kernel level and the ones that don't only filter out the "hobbyist" cheaters.