Considering it's very rare I am playing online outside of with friends, yes on occasion. With friends, I obviously don't cheat because duh, but even for the one MMO I play, I don't wanna risk being banned on a fan server for an MMO literally designed for kids. So, not for games against other players, though, unless everyone has the same advantages or an agreement is made.

As for singleplayer games, I see no harm, so at various points I might do it. Kinda game dependent, though. If speedup is considered cheating, then yes I cheat at Mindustry using a game speedup mod. Same with the mod that allows me to take control of and explode my units at will, which I barely use. Only ever need it to clear some units blocking my visibility when building in crampt sectors after capturing them, though.

Though, I heavily use cheats ( debug mode ) in the Pokemon Rejuvenation fangame jist because of how long and difficult it is on classic mode vs story mode ( normal vs easy difficulty ). Debug mode just speads so much stuff up it's not funny. No need for me to worry about grinding EVs or wasting time if I have to run and grind exp candies to train another mon in my box.

Similar things can be said about other longer fangames that fall into the Reborn/Rejuv type very long and very story driven fangame category as well. I really like debug mode for those games because it just makes slogging through certain parts easier and less annoying in terms of not having to backtrack through an area to heal up.

Yeah, otherwise, I normally don't cheat too much, but am not against it. Especially considering I really don't care whether you cheat or not in a singleplayer game as long as you ain't deceiving others about your usage/achievements using them.