Ok all you experts. I know a guy who has a 2017 GMC 3500 with 16k miles on it. He has experienced abnormal tire wear of the front tires. He claims a Chevy dealer told him that towing a heavy toy haule...
Unless he is exceeding the payload of the truck that it's seriously tilting in some weird way, and he has some sort of front end maintenance issue, it should not be a problem.
Dealer tire and alignment shop has some pretty dull tools in it, usually...pretty low on the totem pole.