Most of the "conflict" between players that I've seen in the last 15 years has been largely online. Whenever I've sat down and ran a ttrpg all we ever talked about was the game. No one was pointing fingers and calling people "murder-hoboes" or "theater kids". At least not in a nasty way.
Back in my teens we played a role, but the line between player and character knowledge was very fugacious. There were two main objectives: survive, and level-up by any means necessary. I had to create my own monsters because players would memorize how to beat everything in the Monster Manual. So, it's always weird to me when people talk about "adversarial GMs" when I know from multiple experiences players can be far more adversarial than GMs.