OEM tires are not made for a lot of miles. HD trucks will certainly wear out tires MUCH faster than a F150.
My RAM has about 100,000 miles on it, and I've replaced the tires three times. The Yokohama's that were the first set I bought got 17,000 miles (Discount Tire did help me out with the replacement). The Bridgestone's are wearing better, but I won't see 50,000 miles out of them.
I never believe those that claim high miles out of tires on a HD. Those are probably the same guys that get 20 MPG towing at 80 MPH.
And, FWIW, our 2019 Expedition has 36,000 miles and the Hankook OEM tires are also worn out. They will be replaced with Michelin before the snow flies.