@AC "far happier if I still use a second factor"
Yes, but what's the second factor to unlock a phone? Even if they still supported Touch ID, having your phone use both Face ID & Touch ID isn't additive. Face ID harder to fool, so if you manage that, fooling Touch ID is a lower bar that doesn't really deliver any extra security - it doesn't give you the true benefit of a second factor.
A proper second factor to a face or fingerprint (something you have) would be a password (something you know) But if you're going to use a password anyway, then what's the value of face/fingerprint unlocking since the convenience of not using a password is now gone. After all, the "something you have" for unlocking your phone is your phone!
The problem with wanting to use a second factor unlocking a phone is that the phone is probably going to BE the second factor for everything else in life you need dual factor for.
Biting the hand that feeds IT
