Blueovalforums dot com has a 300 page thread on people waiting for superdutys.
MFG are having problem getting parts, and suppliers are having an additional problem getting employees.
Compounded with shipping delays, both overseas and domestic.
I manage prototype product builds at an OEM. It used to be, I could have a box shipped overseas in literally a day. Pulling out all the stops now, an emergency shipment can take a week or longer. Sending stuff to and from Europe without priority, expect 2 weeks for Europe, 4 weeks for China