I'm almost embarrassed to relay our order/build time.
Our 2022 from earlier this year was a long drawn out process, from a dealer taking our order with 100% constrained RSE included, meaning it would never be built, to another dealer taking almost four months from initial order to delivery (which in hindsight was to be expected and better than some - this dealer is someone I'd go back to - if they didn't know the answer they said so).
We were looking for a replacement in late july due to not being crazy about a darker vehicle, found a bunch of 2022s, all available but all with market adjustments.
Called up dealer first of August and asked about 2023 orders, he bluntly said, they're open, what do you want to order?
That afternoon our order was submitted. 8/1
The next day it was accepted 8/2.
Found out a week later we had a TPW of 8/15
Tahoe showed up at the dealer 8/28
Z71 with luxury package
Four weeks from order to delivery - crazy. Helps that we are just a truck ride away from Dallas
To me it just reinforces that orders are driven simply by allocations. If your dealer has one and they are willing to use it on your order, then things will happen faster. The same morning I called the dealer to ask about ordering I called a different dealer about 30 mins away from the other one (I'd say equal in size or the second dealer is larger) and that dealer said no RSTs or Z71s are being built. Which to me now meant they didn't have any allocations for those trim levels whereas the other dealer did.