You'll never convince me that biometrics are a well thought-out form of authentication.
stop using them to lock your phone. Use a password. Biometrics can be compelled by the pigs with no repercussions. They ask you for a passwrd? You can tell them to eat shit.
"lockdown mode" won't save you when you're fucking zip cuffed to the ground during a protest or just minding your fucking business, and can't touch the screen to activate it.