Why would you use only PIN when you can use both?

Wouldn’t power-off or lockdown mode also be “destruction of evidence”?

Or better yet use GrapheneOS 2FA biometric + PIN + duress PIN + auto reboot:

• If someone spies on you unlocking your phone, they don’t get your encryption password
• If they figure out your PIN, they can’t unlock your phone without you physically being there, and your phone may reboot to the password unlock before they get it to you
• If they compel you to use biometrics, they can’t legally compel you to give them your PIN
• If they decide to start trying out common PINs and you set your duress PIN to one of them, then it wipes your phone