Incoming call CMF phone 1

If you are away from your phone somebody calls you and you don’t want anybody to see who is calling, just long press the power button and select the lockdown option. The call can be answered only after the phone is unlocked using password not by fingerprint also. The incoming call will not be shown on display.
Suppose you are 💤 ng and somebody tries to open your phone using your fingers, just long press the power button and lock the phone. It can only be unlocked using password.

I think the same works with Nothing phone 1 and phone 2 also. Has anyone tried this before could you please let me know

Thanks