I’m pretty sure games that use kernel level anti-cheat on Windows do need administrator permissions to launch (I’m not certain though, I haven’t used Windows since before this whole kernel anti-cheat thing started to become common). It’s just that on Windows it’s a simple OK box majority of people click through without a thought because of how used they are to doing it without really knowing what it does.
I stand corrected! That’s a lot worse then I thought.