Been watching for Tahoe prices to return to the pre-covid pricing of 10% or more under list. Some are coming through "less than complete". Not sure how many vehicles lack exactly what, but here's a cut-and-paste from one dealer on Cargurus:
" Vehicles built prior to January 24 2022 include Front and Rear Park Assist. Certain vehicles built on or after January 24 2022 will be forced to include (00Z) Not Equipped with Front and Rear Park Assist which removes Front and Rear Park Assist. See the window label for the features on a specific vehicle.), NOT EQUIPPED WITH STEERING COLUMN LOCK see dealer for details (Beginning with start of regular production October 2021 all vehicles will be forced to include (R7N) Not Equipped with Steering Column Lock which removes Steering Column Lock.), "
I've also heard that some non-essential things will be dealer-installed when available, but haven't seen that in print.