Thanks for reaching out — let me help you out.
Was it working before? Have you tried reinstalling your Google Home app? How about rebooting your speaker after linking your Apple Music account? If the issue persists, try these steps:
Keep us posted.
Due to inactivity, I'll go ahead and lock this thread in 24 hours. Feel free to start a new thread if you need assistance with your Google Nest speakers and we'd be glad to assist you further.