Who knows. That's what i'm saying. Who is actually within the limits of these magical numbers when hauling around their family and crap? I sure know i'm probably not. There is no mention that i know of stating reduced capacity for higher duty cycle.
Numbers are from a '21 Tundra extended cab, 4x4, SR5 with the big tank, '22 F150 crew cab, short bed 302a (both the 5.0 and 3.5tt were within 100ish lbs of eachother iirc), max tow package and a 2022 Traverse LT (work car, sitting in my driveway), 3rd row seat. The traverse is rated to tow 5k lbs too.
The Chevy is nice enough, but i'd much rather be pulling 5k lbs with the tundra or f150 with my family and crap loaded up and over weight than in the Traverse.