I ordered my truck on November 11th of 2021. I just picked it up on June 17th, 2022 (last Friday). Mine sat in a rail yard in Mesquite Texas for three weeks, then sat another week at a trucking hub. When it was delivered, it had 19 miles on the ODO, all from shipping. The dealership employees did not drive the truck. The entire process was agonizingly slow, and I understand why some choose to accept dealer ADM's in exchange for immediate delivery of their desired vehicle.
Regarding your Plant Hold situation: According to a Ford regional manager who is friends with my son, Plant Hold means the vehicle in question is likely missing parts. When this happens, FOMOCO is at the mercy of the supply chain. I understand how exciting it is to get the message that your truck is being produced, and how infuriating it must have been for you to get this terrible news. I feel your pain. I will leave you with this. My seven month wait ended being worth it in the end. I got the truck I wanted at a fair price. I encourage you to hang in there. You will get your truck.