Yes. I'm an avid Dota 2 player. I used to play the remastered CoD MWs too, and had a Counter-Strike phase as well.

Cheaters using external tools in Dota are rare. Smurfs are a much bigger problem than scripters/maphackers.

In my experience, MW and CS aren't that bad. I see a cheater only about once in 20 games.

I also play online chess. No kernel level anticheat is going to help you there.