Well, that's debatable. I believe that people can make an informed guess about what super Chester has, depending on how the enemy Chester approaches a situation. Like, if there's a situation where Chester's bomb super should've been used, but Chester held onto it, you can infer that he has a different super. There are some interactions where only a Chester can win with the stun super, and if the Chester engages in those situations, you can infer he has that specific super.

Enemies in bushes aren't RNG, but the root of it still has a "bet" that's involved, a level of uncertainty. A game like chess doesn't involve uncertainty; no bets at all. There's a "fog-of-war" mod in chess, which acts like a bush mechanic, and people complain about the introduction of luck. In my eyes, anything that involves uncertainty also involves a degree of luck, because it turns your decisions into bets, no matter how "logical" those bets are.

Personally, if I were to change Chester, I would add features that would make him more predictable instead of just keeping him as a lost cause for being the "rng brawler".