Well first this is the 2025 thread--so no one has got anything yet as it hasn't been built and delivered. $50K over or $5K under...all fantasy wishing right now.
Now as to 24's, they can be had at MSRP, but yes difficult (not impossible). If you can find a dealer that is at $10K or $5K over, you have a shot to get them to MSRP when truck shows--comes down to relationship w/ GM (decision maker); trade; prior history and luck. Ask me how I know.
But for those those smiling and dialing or emailing hundreds of dealers (been there done that) don't expect great results--they have tons of people calling them everyday with same question. Gotta standout, find the right person on the right day and typically truck should be there or close to arriving. The closer to you location wise the better--local likes local (they get service $$)--a small time TX dealer isn't going to be too sympathetic to a CA buyer at all--the exact opposite they will think they have a live one for $25K over on the phone.
Good luck and enjoy the hunt...because that's what it is.