No. Vivo Y17 does not have a dual front camera set up. It has a 20MP front camera.
Yes, Vivo Y17 does have a scratch resistant display.
No. Vivo Y17 does not have the front camera flash but it does have the display screen flash, just like an iPhone.
Yes, Vivo Y17 does have a fingerprint scanner, which is located on the back side of the phone. Vivo Y17 also supports face unlock.