Our experience, don’t take this as gospel, is that the well-traveled routes and parks have developed camps, the less traveled areas are more primitive. Makes economic sense.
In Kafue, the campgrounds were primitive with barely-there campsites, pit toilets (aka long drop loos in GB), and showers with water heated over the campfire. We heard that the campground at Kaingu was nice but we did not see it.
Pioneer and Wildlife camps were deluxe but different from the US. No designated sites, just camp where there is room, but with hot showers, toilets and garbage bins. Both had bars and restaurants.
Wildlife Camp even offered game drives. All too civilized for us, but we did enjoy the bar at times!