Vivo Y95 has an aperture ratio of f/2.0 for its 20MP front camera. While the rear camera has f/2.2 & f/2.4 aperture for the 13MP & 2MP cameras respectively.
No. Vivo Y95 comes with MicroUSB port.
Vivo Y95 does have the OTG support.
Yes, Vivo Y95 does have the fingerprint scanner. It also supports the face unlock.