I have an nvidia shield tv and have a lot of trouble using the Google assistant to control / play music with Google play music.
I read that one thing to check is to make sure that it is selected as a searchable app.. However, Google play music is not listed. But Google play movies and TV is.
Any idea what could be wrong?
This is what I am talking about (CNET is source of the photo)
Are you perhaps in a country where it is not accessible?