No, the Xiaomi Redmi Note 7s does not have an LED notification light as it comes with a waterdrop-notch design display.
There isn't much space to incorporate any LED notification light.
Have a look at its display-
Check Full Device Specifications Xiaomi Redmi Note 7S
Xiaomi Redmi Note 7S does not come with Widewine L1 certification ( It helps the device to stream Full HD videos).
This is reported as the users are complaining about not being able to support Full HD streaming on Netflix and Prime.
In the meantime, do not forget to find out tall the detailed specifications and other latest updates about the Xiaomi Redmi Note 7S here.
Yes, Redmi Note 7S supports the face Unlock feature.
This phone comes in the range of 10-12 K, with Dual primary camera of 48MP + 5 MP with a face detection feature.
For complete product specification check: Redmi Note 7s