The best “server-side” anti cheat mechanisms online is streaming the game, and I am sure that eventually some talented developers are able to even write some aim bot (or more) for that.
Competitive games need a fully controlled environment. Doing it online with random unknown people should not be taken as serious as they currently do.
Alot about video games is not standardized. To be competitive all players should have the same hardware, internet connection, etc. So that it is actually individual skill that is measured, not just the size of players wallet.
But even then, developing skill takes alot of practice and time, which also, in our current system, can be converted into money. There just is no fair competition here anyway. Still many people believe in meritocracies…
I have nothing against any meta search engine, they are very useful, and I use them primarily as well.
However, they are not a true alternative, because they depend on third-party services. The same as Invidious is a very useful, but also not an alternative to YouTube itself, just a different user interface.