The issue was resolved in a software update. I recently got a Pixel 7 and didn’t even know about the existence of a fingerprint scanner issue until I came to this thread. It works perfectly fine now regardless of lighting conditions.
I think the in screen fingerprint reader on pixel is currently optical (which is just a little in screen camera), so it needs more optimizations to work well under low light.
Why would fingerprint reading get worse if the ambient light is low?
The issue was resolved in a software update. I recently got a Pixel 7 and didn’t even know about the existence of a fingerprint scanner issue until I came to this thread. It works perfectly fine now regardless of lighting conditions.
I think the in screen fingerprint reader on pixel is currently optical (which is just a little in screen camera), so it needs more optimizations to work well under low light.
https://www.howtogeek.com/694294/how-does-in-display-fingerprint-scanning-work/
However pixel 8 is rumored to move to ultrasonic, which probably will not be affected by low light.