I have two iPhones versions X and 12. Both running iOS 14.14.2, Both running Duo Mobile 22.214.171.124.
The Duo mobile app has both personal and company apps configured. The legacy iPhone X has keychain enabled and iCloud backup enabled (Duo is configured to be included in the backup). When I enable “Reconnect Automatically” for third-party accounts, I am able to set my recovery password. I then initiate an iCloud backup.
When I restore that backup to the new iPhone and first open Duo, I do not have an option to recover the old accounts as the instructions state. My only option is to set up a new account. When I return to the original iPhone, the “reconnect automatically” has been disabled again.
My team manages the Duo environment for the company and has verified that Duo Restore is enabled for 3rd party accounts.
In summary, I am unable to restore the 3rd party apps from backup when migrating to a new iPhone after following the Duo instructions.