That doesn’t matter much for slowing a truck down due to the high inertia. Really good low rolling resistance tires (Super Singles) should actually reduce stopping distance as they generally have a bit more contact area. You want low amounts of slippage on the tires while driving as slippage is wasted energy, which should give you more margin when you need to slow down.

Electric trucks also have a massive advantage in mountainous terrain due to ability to dump energy into the battery instead of the brakes which can and do overheat.