In comp games (not like… Competitive ladders and elo, but just playing against a human opponent) I am trying to excise that reaction in myself. Its very important for tabletop gaming community health. I will say if my opponent is being a smug asshole joyously celebrating their good luck even when they’re obvious already winning, it makes it rather difficult. Co-op for life, apparently.
No idea, but on an internal level I imagine it’s healthier to not care about losing in a leisure activity