It's funny you speak of flow state here since for me reading up on MMORPG meta or any meta changes to any game is where I mostly focus on such that even before I launch a game I've been reading up on its mechanics and trying to understand it in an abstract way (the opposite of this for me is when I just play Stardew Valley since I just wanna fish or chat with the NPCs rather than figure out how to min-max my farm). The act of figuring out how a game works mechanically is just as fun as trying to play the game itself for me.