No. LG Q6 Plus does not have the fingerprint scanner but it comes with advance level face recognition.
Yes, LG Q6 Plus does have the VoLTE.
No. LG Q6 Plus does not have the fingerprint sensor but it does have the face recognition lock.
No. LG Q6 Plus comes with 1.2 A power charger which is not fast charger. But you can use Sony CP-AD2 USB charger to charge LG Q6 Plus faster.