We have several Sonos speakers, 3 of which have voice, using Google. My wife and I each have Google Assistant and our own Spotify user profiles. For both of us, Google obeys commands for things such as turning on lights, and it recognizes each of us by name if we ask “Who am I”. However, it only works for me when asking for music. For my wife, it says it doesn’t understand. She successfully sends music to Sonos using her Spotify app, but using voice doesn’t work.
Best answer by Jamie AView original