Earlier quoted context omitted.
There's no way secure boot totally prevents cheating, either. It just moves the goalpost a little, cheating will always be possible.
The goalpost just needs to be moved further than is economically interesting for cheaters in general to reach. Perhaps secure boot by itself isn't enough, but I would imagine it would be a relatively large bump, when combined with a kernel-level anti-cheat. I presume such anti-cheats would e.g. disable the debugger access of game memory or otherwise debugging it, accessing the screen contents of the game or sending i…
VALORANT also adds TPM to the mix alongside SB and a kernel AC and yet is still trivially easy to cheat in as long as you have a driver you can use. Granted, it needs to be signed (=financially unreachable by a big part of the community), but if stubborn enough...