Printing out or otherwise saving the QR code (somewhere safe) is also the only way to have a backup code in case the device is lost or broken, because they don'

Printing out or otherwise saving the QR code (somewhere safe) is also the only way to have a backup code in case the device is lost or broken, because they don't provide one-time backup codes (unlike pretty much everyone else). Then again, it sounds like it's really easy to disable 2FA with just a simple phone call, so...