First, before I forget, I can no longer find your game on SideQuest, which is odd considering they just featured it recently. I have told all of my Quest-owning friends about it and sent them the itch.io link instead.
One point of clarification: IRL, I've played frisbee golf for decades, but I'm not even close to "good" at it. I wanted to mention that in case I had made it seem like I was any kind of accomplished player. I am not adept, but I do enjoy playing the game and have lots of experience.
OK, back to the game. I got to play your latest update over the weekend and it really is a good quality of life update. I was able to play one game without any real issues at all but had an issue on the second one where I lost the ability to grab the driver starting on hole 7. I haven't had time to try and replicate it.
While I really would love to see more holes and maybe even some silly mini-put-esque gadgets like one of the two courses on Rec Room (wind generators, floating negative point targets, etc), I think the social aspect is what will really bring replay-ability. It's a lot less about courses and a lot more about playing with friends, and this is especially true now that we cannot go out and physically play. My local courses IRL do not change; we keep going back to improve, enjoy the atmosphere, and socialize and razz buddies or feel their pain when they miss a shot. In your game, it absolutely amuses the shit out of me when my disc bounces off the basket rather than going into the chains and I almost always feel the urge to laugh, then swear, and then look for my buddies to see/hear their reaction.
As for a paywall, I think that should come after the multi-player core experience. Paying for additional/new courses just makes all the sense in the world. Everyone is used to it in the form of DLC now. Now, once your game is polished, obviously you can charge just for the core game like any good Oculus store game.