I've never taken my van to a weigh bridge, weighed the motor once when I had some scrap metal to get rid of, Motor has a relatively low towing limit, so kerb weigh irrelevant.
Like others I load the car, awning, waste/carrier, tinnies, etc. I travel light.
Only cloths, gas two calor lite, levelling blocks food for a couple of days, plus essential fluids, and crockery.
Never been stopped, but I would expect the whole outfit to be weighed to check train weight, then separated to see how that weight is distributed, between car and van.
I only check the nose weight regularly, as my axle weight can be increased by 85gk when towing, which is my tow bar weight,( the most important task) and easily checked. . every thing else is kept to the minimum.