Tato služba zřejmě není v České republice podporována.

According to Google support:

We can only guarantee the full functionality of the device to those countries where the Google Home device is officially released. Though YouTube Music is available in Hungary, it is not an assurance that he can also use it with the Google Home because for now it's only available in:

US, UK, Australia, Canada, France, Japan, Germany, Austria, Italy, Mexico, Spain, Ireland, Korea, Norway, Sweden, Denmark, and Netherlands