I am oneplus 3T user, happy to have face unlock.
I feel, you should have enabled smart lock.
It's one plus 3T with open beta version of OxygenOS
It's Almug icon pack
Screen shots for Parallel Apps.
Go settings and apps
Wait for few more days, it's already available in open beta. Where you can have two whatsapp, facebook, messenger, linkedin, which is called parallel...
Thanks @Tony L
Nova Launcher Prime
Argent Icon Pack
Chronus weather widget