On my Samsung Galaxy S8, my phone no longer responds when I say "OK Google"
The voice match settings don't work, I found device-specific settings and can attempt to set voice match up there, but when it does voice training and I say "OK Google" it does not proceed.
EDIT: I didn't have S Voice installed. Bixby is a stock app and I don't think I enabled it on this (or any of my) phone(s). I worked before regardless. I'll double check anyway. I uninstalled Alexa and Cortana. Updated Google App and all permissions were enabled. I toggled the Microphone option off and back on. Google Assistant app said no permissions required. Still the same result unfortunately.