I'm in the same boat. Just tried to order a Silverado 1500 last week but GM wouldn't let the dealer add in all the options I wanted due to the chip shortage. To make matters more complicated, I read an article yesterday saying both GM and Ford are canceling their summer shut down/re-tooling for the new model year in order to try to catch up on 2021 production. It would not surprise me if GM delayed the 2022 refresh for another year, just to catch up on current demand.