Google is testing a native App Locks feature for Android in the latest Canary 2603 build, allowing users to lock any app from its menu with a fingerprint or PIN for added security. This feature also hides notifications, removes widgets, and disables shortcuts for locked apps, enhancing privacy. While currently in testing and potentially buggy, it offers a more flexible alternative to the existing Private Space feature. Additionally, Google is exploring other enhancements like toggles for Wi-Fi and mobile data, app bubbling options, and a new screen recording tool.