Given we're in a thread about biometrics being the opposite of privacy and security, it really does seem relevant to me that the threat model where they would be insufficient and the one where that would matter is basically empty.

If your thought process is "I need to protect this from the police and a determined or sophisticated criminal, but I can't be bothered to use anything more than my lock screen on my phone"... Well, you're already starting from a pretty bad place.