I don’t know if anyone has ever previously mentioned this, but I have a BigHorn Level 1 with standard HVAC (no dual zone climate control), and I have the same issue.
Set to MAX/ Recirculate I am getting around 49-50 degrees out of the driver center vent and around 42 on the passenger. If it was the other way around I wouldn’t even care. Mostly, it’s just my wife sitting in the passenger seat and women are always cold anyways!
This issue is across the board. It doesn’t matter if you have 8” or 12” screens, climate control or standard. I had the dealer check it a while back and of course they said there’s nothing wrong with it. More specifically, they carefully worded that it “functions the same as all the other trucks we’ve tested”. Which, to me, means that they know it sucks.