I support the idea that severe cross winds sustained over days at a time while driving across the Great Plains, cause uneven scalloped front tire wear. That has been my experience, both with our previous and current-day rigs. With our old Toyota-based rig of 24 years, I used to dismount the front tires from their rims and flip them, remounted so the better thread is in the better place, just to get more miles of use from them. With our current rig, it is not yet time to take any action.
For the record here, both our previous rig and current rig have good wheel alignments.