I'm not sure if anyone else here is ordering a 2023, but pricing was just released a few days ago.
There's now a $905 onstar subscription "built in" to the build.
a few other things are slightly pricier, but overall it made the MSRP of the truck go up about $1200. This particular build is a 2023 AT4 with 3.0 duramax, premium and tech package, sunroof, and illuminated GMC emblem.
I've been lucky enough to find a few dealerships relatively close to me(I'm in Houston, Tx) that will honor supplier pricing, but i ended up placing my order out of Idaho with courtesy delivery to a local dealer.