Sonos's integration of Google Assistant is very very poor. I'm currently having the following problems, all of which are very basic.
Can't shuffle music
Can't voice match (e.g. to put phone on Do Not Disturb)
Can't do basic things until you turn off Voice Activity
Can't turn down Assistant's very loud voice
Can't set alarms (they just disappear)
And no Chromecast!
This is a shameful stain on Sonos's reputation.