Apart from SwitchBot's Wi-Fi models, these locks use Thread, so Google Home needs a hub that is also a Thread border router, such as
Nest Hub (2nd gen), before setup can finish. Locking and lock status are the dependable part. Unlocking has conditions: Google's developer notes say voice unlock is disabled for Matter locks, and remote unlock is switched off on any Matter lock that does not require a PIN code. Where a lock does require one, Google Home asks for the passcode before a remote unlock. Some Matter locks also need a calibration step that only the maker's app can complete, so keep that app installed after moving daily control to Google Home.