Changes saved on this device
How device-only changes work now that guests are read-only.
Signed-out visitors browse read-only. Every collection edit opens the sign-up dialog, so guests no longer build up changes on the device that later need to be moved into an account.
Signed-in edits are queued on this device and sent to your account automatically. While they wait, the app says the change is saved on this device and will sync when you are back online. If the collection changed somewhere else, or syncing is paused for your account or plan, the app holds the change and tells you why instead of discarding it.
The older review for guest and pre-account changes (Review changes, Keep on this device, Download original data) has been removed along with the legacy collection model, and the app does not upload that older device data.