I am having the same problem and it is getting very annoying, I did see that some dealers are replacing parts on the windowsHi, just found this forum and saw people posting about noise issues and though I'd post mine as well in case someone else has the same problem.
I have an AWD Limited 2020 model.
Just recently, maybe in the last couple of weeks, whenever I hit ~63/65 mph, it starts to sound something like being in a wind tunnel or just a dull, echo-y noise. What I noticed, though, is that if it put my arm up against the door, the leather area up by the window, and press into it, the noise stops. Pull my arm away, noise happens again.
I left my Palisade at the dealer so they could look it over and after three days in the shop the only they said they didn't notice anything. A couple days later, driving down the interstate in my area, the wind sound is back, and very, very loud. Taking back into shop today.
If anyone else has experienced this, let me know.