I am in the same boat as you and noticed the exact same dates on my WS yesterday when it reappeared. I found this post interesting and wonder if there is anything to it.
Check out johnpsz second post explaining the dates:
Dates and codes on Window Sticker - Ford Truck Enthusiasts Forums
2017 - 2022 Super Duty - Dates and codes on Window Sticker - First off I want to apologize for the questions, I know I saw the answers on here a couple of months ago but I have searched and can't find them now (should have tagged them back then). I got my Window Sticker and there are two dates...www.ford-trucks.com
My Tremor was built 11/16
The dates on my WS are 11/1 and 11/16 and prior to being built it was 11/1 and 11/9

