MediaStateState support for Google Nest Speaker

[idkhn]

condition:
  type: device.state.MediaState
  device: My Device - Room Name
  state: playbackState
  is: PLAYING

Doesn't appear to support any Google speakers. Is that right? 

Else, how could I detect music playing on a Google speak?

[DWB1973]

That's right, MediaStateState is currently only supported on certain playback devices.  I've already complained about the Nest Mini being unsupported:

https://www.googlenestcommunity.com/t5/Home-Automation/Script-Editor-Share-your-ideas-and-vote-on-ot...

[Fruity_Grebbles]

Which playback devices are supported? A support conversation led me to believe that neither Chromecast Ultra nor Chromecast with Google TV are supported.