Firstly, I play on PC. So I don't know a work around xbox pass if that is the cause of the problem
I'm not quite sure what you mean when you say you can't see games to join.
Normally you don't manually join any games, It puts you in a que to find other players to create a lobby for a game.
From the main menu, on the left, you'll see an "Online" option. In here will be 3 game modes to chose from.
Pick your golfer, then in the bottom left it says "find match"
If there is no "Online" option. That's something very new to me and maybe someone else here could chime in.
3 pictures below of the online queing process.
