Can we book the genie+ fastpasses in advance like we used to previously? Or is it like disneyland where we show up and can get fastpasses after entering
Neither. You can begin booking genie+ LLs at 7 am the day of. So it's day of, but you don't have to wait until you are scanned into the park like at DL.
Unless you’re usually still up at midnight- just purchase Genie+ around 6:45 or so - right at 7 you really need to be ready to grab those LLs & ILLs. DD & split morning “duties” one grabbed the ILL and the other our first LL of the day.