I think you're missing my point: there is no KLAC for Linux, therefore if you wish to play a game with less cheating, you choose a game which requires KLAC. Therefore, you do not use Linux. Your comment is a non-sequitur.
Except that some games use KLAC on Windows, but also have Linux versions that don't use it, so whether you use Windows or Linux is irrelevant.
If you choose to play Windows-only games because you think that is protecting you from some nebulous group of cheaters who moved to Linux to aid their cheating, I think you don't know the cheat landscape well.
Cheat makers primarily operate on Windows, not because it's easier, but because that's what most players still use. This idea that you're going to avoid cheaters by staying on Windows is honestly the opposite of true. MP games with Linux clients are not the games with massive cheating problems.