>Don't use biometric security.

Worth noting that on iPhones you can lock out the ability to use biometrics by pressing and holding Side + volume button until you see the "Slide to Power Off". At that point it can only be unlocked with your passcode/password, and you cannot be compelled by law enforcement to unlock your phone if it's locked with a passcode/password due to the 5th Amendment. Obviously you need to be able to quickly recall how to do that procedure in an emergency.

But yes, the suggestion to only use physical versions of things is good advice.