Today I've reported a player in Marvel Rivals for being a cheater (it was obvious to me, even autoaim through wall playing hawkeye). And I just got a confirmation message that the player is banned until 2125... basically a 100 year ban. :D Do report them. Report toxicity as well (I get ton of confirmation). But do not report because you are angry or maybe the other player played well. It's the first time I reported someone in Marvel Rivals for cheating.
I do my part.
I mean i guess it worked, overwatch is pretty happy community right now (by online game standards), least in my experience. Although I think the bigger thing is toxic players are first to leave for other games, like rivals.