Easiest way I have found is to use a routine to start listening. I tend to either play the radio or Spotify, so for instance when I want to use Spotify I have created a routine called 'Spotify' with a startup command of 'Spotify' a single action of 'Resume Spotify' and an adjust media action to whatever volume you want. Then when I want to use Spotify I just say 'Hey google spotify' and that's it. I've created another similar routine to turn on the radio. I found this useful since recently I've found the volume for playing Spotify needs to be lower than playing the radio.
Have you tried the steps above by creating a routine for it? If so, how was it? If what you meant by the startup volume is when your Nest Audio makes a sound when responding to you or when it’s plugged in or bring back from mute status, then try to disable it:
Thanks for helping, Kadven.
I appreciate the assistance, Dan.
@Zinc132, I want to ensure you're all good now. Please reply to this thread if you still need assistance so we can help deal with your issue.