Steam store pages received a new Anti-cheat field. Disclosure is mandatory for kernel-level anti-cheat solutions. And recommended for other anti-cheat solutions (like server-side or non-kernel-level client-side).
The field discloses the anti-cheat product, whether it is a kernel-level installation, and whether it uninstalls with the product or requires manual removal to remove.
Write it in language that obfuscates code by default (Rust does that) and then it obfuscates again. Or do it the Valve way. Even though is very easy to crack their anticheat (the hacks and DLL injectors are basically for free both on Windows and Linux), they have other measures in place. E.g. Votekicking players, Overwatch and matchmaking against other hackers.