No other app can get to that backup data though except the original one that made the backup. Not even the owner of the account is allowed access to it (which I'm almost sure is a GDPR violation)!
I'm not saying it's impossible that Google just grants their own app an (IMO indefensible) exception to this. But the potential shitstorm would be massive, so I assume they probably use some other way, such as screen recording or accessibility features.
I'm not saying it's impossible that Google just grants their own app an (IMO indefensible) exception to this. But the potential shitstorm would be massive, so I assume they probably use some other way, such as screen recording or accessibility features.