I hooked up my 7k lbs TT last night to the new '23 Ram 1500 for the first time. When I set the weight of the trailer on the ball, the total sag was 2". When I used my Blue OX stabilization and distribution hitch system, the sag was 1.5". My ball is level with the coupler when the trailer frame is level and before weight is added so I really need to raise it up a notch on the receiver. However, I am installing a 2" lift in the rear in a few weeks and in theory, that will level it out when loaded.
In contrast, the sag on my '21 Power Wagon was at least 3" or more.