Truck drivers distort the measured speeds. If they were treated separately, WAZE would be much more accurate.
It may be that there's no interest in optimizing the app for vehicles over 3.5 tons, such as motorhomes, trucks, buses, and the like, but drivers of precisely these vehicles still use Waze because Waze is simply one of the best navigation apps. However, these typically much slower vehicles distort the average speeds of users determined by Waze, so it would certainly make the app much more accurate if users could enter their vehicle data, such as weight and size, so that the data can be assigned accordingly when collecting the returned data. In return, truck drivers would then benefit from finally no longer being offered routes along roads with weight restrictions.