Thanks for reaching out! I understand your concern of not being able to use the Apple Music feature in Italy.
Unfortunately at this time, the Apple Music feature is only available in France, Germany, Japan, United Kingdom and the United States. I do not have any information or knowledge regarding features being implemented on Google Home/Nest devices. I appreciate your feedback and will share it with the team.
You can also send feedback about this issue by using your device or the Google Home App. Check this link for more steps.
I appreciate your patience and apologize for the inconvenience caused. Thanks.