Samsung requires manual unlock every four hours now?

[Sushubh]

If you do not use your device for four hours or when you turn on the device, you must unlock the screen using the pattern, PIN, or password you set.

How can I unlock my Galaxy device if I forgot the security PIN, pattern or password? | Samsung Support India

I just noticed this today. Not sure if this is new.

 

[Sushubh]

Probably an old behavior. And fps is excluded so that's why I didn't notice this before...

 

[mikrotik]

I have noticed this 72hrs things for fingerprint on my OnePlus. But unlock is not blocked.

 

[Tejas01]

I happens with my Nokia 7+ Android One. It's a regular when you reboot or turn off, on. Also if you try to use phone after remaining locked, it will still ask for pin despite unlocking with fps.