So, basically, you get starlink "installed" at your home address, but you can install it on your camper at that address. I believe the antenna/dish is movable as well. Anyway, there's a new option for roaming that can be enable which essentially means that once the dish establishes a connection, you can literally drive and the dish will stay connected, changing satellites as needed. This also means that when you turn it on it will be allowed to connect to any satellite available. Internet no matter where you are in the USA!
The hardest part is availability, but I'm sure more will be opening up moving into 2023.