Once years ago (well before COVID) we walked up to the Indiana Jones show about 2 minutes before start, and we had a terrible spot right in the back. IIRC it was even standing-room-only, or maybe it was that the seats were so bad and we were in the back that we chose to stand up. Anyways, we got a seat, but probably would have been worth it to arrive earlier for a better spot.
Then again, one time we came pretty late (about 10 min before start) to Fantasmic, and got placed right in the front row! Which apparently lots of people don't like since it's too close, but I thought they were great seats.