Google's built-in password manager on the Xiaomi phone with MIUI 14, despite having the auto-sync feature enabled in settings, fails to sync passwords across multiple devices with the same account. Upon attempting to clear Google app data and relogin, all previously saved passwords on the phone were lost, suggesting that the Google password filling service is a local version rather than being cloud-based. This prompts the question: is this an issue specific to MIUI or a common problem with Google services on Chinese smartphones?