I would use the Proton Pass password manager if it required a log in each time I open a new instance after closing the app. I don't like to hold my phone in a constant death grip to prevent people from accessing my accounts if I'm around acquaintances. My current password manager gives me peace of mind by requiring the password each time I open it, much like the banking apps do. That way I can log out of any apps that may have sensitive or private information and my password manager can't be opened by anyone who happens to grab my phone either.

Please at least add an option that can remain persistent through updates that will allow the user to require a master password to open and edit the Pass app.