I need to send in my iPad for repair, and want to know if iCloud backs up ALL app data, or only the apps that are designed to sync their data with iCloud?
An example is my 400 hour Slay the Spire save file. It doesn’t get synced to iCloud normally (so no cloud saves across devices). Does iCloud device backup back up the app data of such apps? If I erase the iPad, send it in for repair, and then restore from iCloud, will I get this save data back?