How to force passcode unlock on iPhone SE lock screen?
Old post. I know. I was bothered with this problem for a loooong long time. Hence, I was looking for solution, while reading this topic here (thanks for that) i !accidently! found the solution:
SOLUTION on iPhone SE (iOS 14.2:

press either the home or on/off button ONCE
wait a short while (approx. 0,63468 seconds) ;-)
press the home button

TOUCH ID or Enter Passcode shows up
OMG, it is so simple. I was so frustrated. Hitting my home button so often, angry about Apple,... Now its all gone. Simple and easy solution.