Another “tip”… If your fingertip is dry, lightly moisten it, then try the sensor again.

My 7a fingerprint sensor with a Spigen glass screen protecter works fine about 95% of the time. When it doesn’t, quick lick of the fingertip and that usually does the trick.

For customizability, I currently use AnySoftKeyboard, and also like Florisboard (although waiting on next word suggestion).

I also like Florisboard for the customizability. Hoping it gets next word suggestion features soon.