I have to chance the fix...I am not handy enough to do a manual workaround...and I am not happy enough with the temps I am getting to leave it as is. If they screw it up I will keep going back and if it's that bad they can deal with it at lease end. This is after 40 minutes on a 77 degree day with full ceramic tint...the cab should be COLD.
Quoted for the picture you have of the thermometer.
There's a reason why all those car thermometers have a green band around 40-42 degrees: that's what temperature an air conditioner should be putting out of the vents. It can vary, but it should NOT be in the 50's. Sure, the manufacturers have charts, showing outside air vs. conditioned air temps. As others have shown, repeatedly, the evaporator is very capable of outputting the correct (42F) air: the airbox design allows too much heater core (210+ F) air to mix.
The other issue, large output temp differences between left and right sides, can only be resolved by changing the airbox.
I have a 2021 Laramie. Output air is not quite 42. It's closer to 45-48. I am thinking about adding a remote-controlled heater core bypass valve so the air will be colder. I live in the South and have a black interior. Yeah, it's important to me.