Ford doesn't build their F450, stick a 14000 lb GVWR door post sticker on it and publish all their advertising literature as though it has a GVWR of 14000 lbs but secretly expect all their buyers to know that if they want the true capacity of the F450 they have to go on the truck forums to find out what it is.
Except that's exactly what they do. Same with the 10K versions of the E and F350's. Full axles and suspension specs are readily available so buyers can make their own informed decision how to use the truck for their own needs. Both the 10k F350 and 14k F450 have even been stated by Ford to be GVWR-limited for registration and/or insurance purposes.
2019 F-SuperDuty Full Specifications