I usually enjoy online multiplayer because it’s always a different and unpredictable experience. Keeps it fresh. I don’t really feel competitive when I play against other players. The key is to play casually, and disable voice chat. There’s never anything of value in random voice chat, only the contrary. And if cheaters show up, just exit and do something else.
That said, if you find yourself feeling very strongly about how you think the other players might feel when they win or lose, then I agree it’s probably a good idea to just avoid multiplayer or any other environment you perceive as toxic and unhealthy.