Please read https://www.gnu.org/philosophy/right-to-read.en.html as to why that's a horrible idea

I don't understand. Because someone wrote fiction about Linux and debuggers being somehow made illegal we should allow cheaters to ruin multiplayer gaming?

fTPMs and attestation/endorsement, Boot Guard, Secure Boot etc. have existed for years. They are just now beginning to be discussed/used for anti-cheat. I still think the ideal solution is server-side data analysis, however.

The APIs and such exist but due being an open ecosystem, proper security that cheaters can't bypass will take a while to become standard since random OEMs will not care about security unless you force them.