GrapheneOS scrambled pins are hard mode.
Discussion
Ok fine 2 seconds. I do have my numbers scrambled.
You can enable a second factor PIN for biometrics as well. Recommended as a secondary unlock method you don't need to type excruciatingly long passphrases to unlock your phone.
Dual factor enabled, not super easy to find. Slowing unlocks might also slowly train me to open my phone less than 1800 times a day to check nostr.