My Hawk weighs ~1400# wet.
Today, "1/2 ton" pickup is almost a misnomer in-so-far-as payload weight is concerned. That was not the case 10 years ago.
Payload specs today, for example, a 2021 Ford F-150 (often thought to be a 1/2 ton pickup) has a payload capacity of 1,745 to 2,238# depending on specific submodel/engine. Chevy 1,750 to 2,280#, Ram 1,212 to 2,302# and Toyota Tundra, 1,520 to 1,730#; again, payload is dependent upon submodel and options.
Generally, regardless of make, the more expensive, well appointed, 4WD crew cabs will typically have the least payload.
So most popup campers will not exceed the payload or GVWR specs of late model year "1/2 ton" pickups.
Just remember, payload is anything and everything you or the dealer puts into the truck after it leaves the factory. So any dealer add-on, fuel, passengers, gear is payload and needs to be calculated accordingly.
I prefer the 3/4 ton pickups, been driving one now for over 25 years. I prefer to have at least 25% buffer between my vehicle's payload spec and what I'm actually carrying. You're pushing the limits of the suspension and braking when you approach max payload and/or GVWR.
Jonathan Hansen published a good article on his web site about the 2021 Super Duty Tremor. I've been driving Super Duties for over 25 years for payload and towing needs. I even had a Prius when fuel was ~$4/G! Today, my daily driver is a '88 BJ-74 Land Cruiser if not my bicycle or motorcycle.