It’s Harder to solve than you think. I came upon a documentary a while ago where they go a bit more in depth on the subject and what cheaters can do nowadays.
No company has solved the problem tbh. Even games like counter strike are riddled with cheaters and even on faceit there’s plenty of people that are dodgy AF and likely cheat.
It’s not an easy problem to solve and it is, AFAIK, still an unsolved problem in shooters. So your comment is a bit salty. Might as well claim every game engineer worldwide isnt good at their job because nobody has solved this yet. Not that I’m defending riot.
The rootkit “solution” is complete bullshit. It is completely disproportionate and a massive security/privacy risk. And to top it off it’s not even a solution that’s good enough.