In its latest update to
Google Drive for
iPhone and
iPad, Google has added a new Privacy Screen feature that lets users enable Face ID or passcode authentication whenever the app is opened on their device, irrespective of the system's global security settings.
Similar features have been added to other third-party iOS apps containing particularly sensitive content, like password managers for instance. The idea is that even if you leave your device unlocked, anyone who tries to launch the Google Drive app still has to get past Face ID or
Touch ID to gain access to your storage cloud-based files.