is it normal to have to unlock screen first in order to answer incoming phone call?

what is a good number of digits for a pin? 6, 8, 10, 12, 15 digits, or 4 digits is sufficient ?

    tomz

    is it normal to have to unlock screen first in order to answer incoming phone call?

    No, that is not the rule as far as i know. You should be able to accept or reject incoming calls by swiping on the lock screen (applies to owner and user profiles) without unlocking your phone.

    what is a good number of digits for a pin? 6, 8, 10, 12, 15 digits, or 4 digits is sufficient ?

    This topic has already been discussed a lot here in the forum. Maybe you find these discussions helpful:

    https://discuss.grapheneos.org/d/4638-pin-number-strength

    https://discuss.grapheneos.org/d/5203-pinpassword-best-practices

    https://discuss.grapheneos.org/d/10747-how-long-to-crack-6-8-10-digit-pincodes

    https://discuss.grapheneos.org/d/4727-graykey-countermeasures/

    Not a direct answer to your question but worth reading:

    https://grapheneos.org/faq#encryption

    A small advice: Since the questions are not directly related to each other, it could be helpful to start two separate discussions - you will then probably get more and better answers.