For whatever reason, the mic notification beep for Google Assistant stopped working. Going into accessibility & turning it off/on not working. Feb 1, 2021 update broke android auto voice navigation. Google will respond say "it looks like you want to navigate" or "I do not understand". Basically, you can no longer say "please navigate home" or "navigate to costco" or "navigate to (enter address or name of place you want to navigate to). So navigation is useless unless you physically type it in!