I see. That setting in the application was greyed out for me, because I had installed 1password as a snap. After I re-installed it as a deb, the setting is available and enabled, but indeed unlocking the extension doesn’t offer the option to use e.g. biometric authentication from the app. I wonder how this is implemented, maybe these advanced features don’t use native messaging, but rather another communication layer? Can you maybe ask about it on their support forum and link to the discussion here?