Found out today, while it was at the dealer for oil change, etc., that my phasers are bad too on my 2019 Raptor. Build month 04/19. It had a long 1-2 minute rattle when starting cold or warm, but it was more of a ticking type rattle, not a super loud noise on a cold start or anything like that. I figured wastegate, but they said phasers.
At least I'm driving a new Explorer now as a loaner as they said they would have the truck until early/mid next week. Dealer has been good to deal with so far except they told me on the phone today that they recommend their 30k mile full service since I'm at 34k miles and that my coolant, transmission, and brake fluid was discolored and should be changed for over $500. I tried not to laugh over the phone and said, "no thanks." upselling clowns...That is why I only asked for the synthetic oil/filter change and not the full service.