I think it could help with tracking transactions and detecting weird activity like buying virtual goods with glitches, but when it comes to stuff like aimbots, wallhacks, or ESP in competitive games, I don’t think blockchain would solve it completely. I mean those cheats affect gameplay directly, not just the in-game economy.
For instance, people are still using xdefiant cheats right now, and they’re pretty effective in getting around anti-cheat measures. As long as there are ways to manipulate the game’s mechanics, there’s always gonna be someone who figures it out.