The Redmi 6a does not have NFC hardware, so this is irrelevant.
On the Redmi 6a (2GB or 3GB RAM), Evolution X is surprisingly usable but not perfect: evolution x redmi 6a
: Includes a dedicated "Evolar" settings menu for system-wide tweaks, such as status bar modifications (battery styles, clock options), quick settings panel transparency, and dynamic boot animations. The Redmi 6a does not have NFC hardware,