Yes, Nokia 7 Plus does have the hybrid sim slot. You can use either 2 sim cards or 1 sim card & 1 memory card.
No. Nokia 7 Plus does not support face unlock as of now. It is expected that Nokia will soon release an OTA update for it.
Yes, Nokia 7 Plus does have the headphone jack, which is located on the top panel of the phone.
No. Nokia 7 Plus does not have a dedicated memory card slot. It has a hybrid sim slot. So, you can use a MicroSD card and a sim card at one go.
Great battery life, immersive display, solid design, and software at its purest, that's the Nokia 7 Plus for you.