This is the main issue I have with these. Microsoft should be providing this at the platform level, give developers "Xbox Anti-Cheat" and ship it with Windows.
How much of Xbox anti cheat is "can only run signed code"? Might not be compatible with regular PC use but maybe if we had a gaming mode we could boot into.
No good deed goes unpunished. In the current regulatory environment, that seems like a good way to attract attention from regulators for anti-trust violations.