Yes, but also not really? Not sure if enabling “Keep Inventory” counts as cheating in survival Minecraft or if it counts as a play style. Of course creative mode is only cheating when you use it in a world that was meant for survival, but I haven’t done that. Really unsure what counts as cheating in Minecraft singleplayer to be honest.

Other games: no, not really, I don’t even know how to cheat in Hollow Knight for example, Universe Sandbox is fully a sandbox game so you can’t cheat, and…

Oh wait, I guess I did use Assist Mode in Celeste once? I think that counts as cheating since I didn’t really need assist mode at all I was just frustrated and wanted to have fun. Yeah, sometimes I cheat actually. It’s fun in singleplayer and doesn’t ruin the game for anyone else.