RE: Smaller or more minimalist truck camper
https://www.outfittermfg.com/shop-campers/caribou-lite-6-5
Available with cassette toilet. Queen size bed. Can be carried bu a mid-size truck. Less than 1000 lb dry.
This would be my choice if I was ever going to camp off-road again like I used to. Smaller, lighter, more agile.