Flat Towing - Strong “burnt” smell first drive after flat tow

I have just flat towed my 2022 Big Bend over the past week in two 600 mile legs of a trip. I’m experiencing a strong “burnt” smell the first time I’ve driven it after each leg. Can’t tell if it’s a brake or oil smell. On the first leg , after initially smelling it the first time driving, it didn’t produce the smell driving it the rest of the week.

Has anyone experienced anything similar?