Thank you, had not noticed that message.
However, I just asked my Tesla sales rep, and got exactly the opposite answer. He says it will be on the window sticker. Could be because of a difference in state tax treatment.
One thing I'm now wondering, if instead of trading in to Tesla, I just hold on to it until I take possession of the new Y, and then start the FSD transfer, the FSD can never end up on the window sticker. I'd just sell the old Y immediately after the FSD transfer to Carvana/Carmax/etc.