Redmi doesn’t remove fingerprint lock from their phone. They just relocate the position of fingerprint lock from back to the screen.
Yes, I am absolutely right. After the model, Redmi Note 6 pro all contains front screen fingerprint lock. Further, It is inbuilt into the screen. If your phone is a lock, put your finger on below middle side of the screen and it will unlock.
Upcoming Redmi phones like Note 7 Pro, Note 7S also K20 Pro all of them contains same screen display finger lock.