Well, back to the original point of my thread ...
... spoke to my dealer and canned my 22 Denali order. It was Denali + Premium package, so fairly straightforward, but he indicated that items in the Premium package were on constraint until April.
Orders for 2023 begin in May but he couldn't specify exactly when in May. Given the current craziness in the world it could be pushed out or it could be May 1. He also could not confirm that GM suppliers have committed to the first batch of 23's with full features, so if there are any suppliers or anyone in the know on this forum please chime in.
He did indicate that in the absolute best-case scenario (no constraints for first batch of 23's) I could order in May and have a full-featured vehicle in July. Worst-case scenario I'd get a '23 sometime in November or December with missing features. He said the reality was, not surprisingly, somewhere in between. Just too many unknown variables at this point: supply chain, chip shortage, war, etc.
I guess we'll know more in a month and a half!