I’ve seen people post about repeatedly hitting refresh to get better fastpasses. Is that because there are more that aren’t showing available or because someone might cancel theirs?
Yes. 1) You don’t see all the times when you search a FP, for whatever reason. 2) People drop. 3) They release more periodically.
It is funny how it works. Sometimes you go to modify and you see one or two attractions. You refresh and 10 pop up.
I believe the times and attractions they show you are held just for you for a few minutes. So that’s why when you refresh you might see a ride switch to unavailable and back again or different times than you saw before.