I had assumed the propellant would be a single additional launch, but this Wikipedia article says 10. $1B+ to leave LEO definitely makes the narrative that Starship is going to revolutionize space travel sound like a load of bullshit, unless there are realistic plans I am not aware of to reduce the number of launches significantly.

Edit:

This article has more details. It takes 7.5 tanker launches to fill a Starship, but Elon insists 4 should be enough for the Moon, whereas NASA estimates up to 16 due to boil off.

It really sounds like Elon has been overselling the value of Starship, but the saddest part is that other reusable rockets in development will likely have the same problem.