Good to know the details, thank you. It's sounds like a good feature, however, > "But some things persist, like the app's related keychain data, which might c

Good to know the details, thank you. It's sounds like a good feature, however, > "But some things persist, like the app's related keychain data, which might contain a user session." this is also functioning as a "super cookie". Once you've installed a Google app, Google will always know it's you. Even when reinstalling/using another account. Apple should provide a mechanism to clear these items too, and prevent tracking users.