Retain Previous Setupo on Amazon Firestick 4K Max

If you get a Firestick 4K Max, is it a complete reinstall for Kodi & add-in’s or can you retain previous set up

you can use adb link or similar to transfer kodi with the addons but any stand alone apps will have to be reloaded

Couldn’t you use the Kodi backup app to save your current setup, save it to a cloud, move it over to your new setup and reload it into Kodi? Just thinking out loud in case it sticks lol.