I just bought a Litter Robot 4 and in the one week I’ve had it, I just emptied the bag for the first time. No scooping or anything! You can use regular 10-gallon trash bags in the compartment. No proprietary bags required, although they do sell them. The pee/poop get dropped into a compartment below the area where your kitty does its business, so there isn’t any smell.
Let’s also add more and more sodium just to break some records.