If you block a player I assume that means they can't join a game I created nor can I join a game they created.
But what about if someone else creates a multiplayer game.
If I join, is the player I blocked still allowed to join ?
If already joined the game, will I still be allowed to join it?
If you are a player in the game, they are not allowed to join. It doesn't matter who the game's host is.
I'm not sure what happens when you join as spectator, then they join as spectator, then you become a player.
But either way, you don't see what they write in text.