I ordered a 4x4 502A 3.5 ecoboost on 10/18/21, before the order guide showed the black appearance package as late availability.
Ended up getting schedules for week of 2/28, pushed to week of 3/7. Actually built on 3/15. Got put on a rail car yesterday, 3/26. ETA to dealer is 4/5.
Patience is definitely the way to go for a custom order, especially on an F150.