Yes. Players who are invested in winning. Not players who have poor emotional regulation or social behaviour and are invested in being assholes.
It’s called sportsmanship. Yet some online games sound worse than middle school sports games… probably because, for years, nobody got punished for acting like a middle schooler who can’t control their emotions or behaviour.
As for your statement on toxicity preventing you from playing multiplayer doesn’t seem true. There are plenty of games where you will never see toxicity and you still don’t play any of them so that can’t be what’s stopping you.
I’m fascinated by how you know so much about the games I don’t play! Lol