I ordered a Denalimax (Duranali?) early October last year. Diesel, tech package and max tow. Still waiting for GM to pick it up.
Difficulty - small-ish dealer in Canada. Not sure what their allocations are like, but I'm apparently '#1' on the list with them... We'll see. The lack of transparency with the whole dealer allocation, constraints, etc. is the most aggravating thing of all.
If it bumps to 2023 I'm probably out. Not that there's anything else easily available right now.
*grumble grumble*