So can we technically easily roll back to older versions now without losing data? AFAIK messages was the last thing that required a backup, they now are stored via Messages in iCloud.
Does that mean we can set up our devices as new after a restore (with iCloud Backup being inaccessible due to being tied to iOS 12 beta)? No progress should be lost because all of the features I can think of having CloudKit integration since iOS 11 (ok, voice memos will disappear).
App data should also populate with you downloading an app onto your device, or is it only apps that explicitly implement a form of CloudKit integration? Shouldn't be too painful for most apps because they store their data on their backend anyways (facebook, twitter etc) and some apps I use (like WhatsApp) offer custom iCloud backup solutions.
Could this be a breakthrough? Please correct me if I'm wrong (although I hope I'm not). A brave soul out there willing to try how much a fresh start actually pulls from iCloud?