I want you to know I successfully migrated only to experience database corruption about a week later losing my instance. I have a backup of the raw data fortunately. I understand engineering resources but this is why we really need to be able to have arbitrary backup and restore per app. Please bring that engineering focus to implement backup and restore up sooner than later. I can't wait to see that functioning built into buddy back up as well!
More thoughts it looks like there's others in the community that are looking forward to this future as well see TrueNas Scale needs a first party application backup and restore system