Thanks for posting here in the Google Nest Community.
Uniformity is important to prevent confusions, I just want to clarify your concern. Are you pertaining to the notifications every time you say “Hey Google”? If so, check the steps below, otherwise, attach a short video clip showing your concern.
Keep me in the loop.
I wanted to check in and see if you managed to see Juni's post. Please let me know if you have any questions from here. I would be happy to assist, and make sure you are good to go.