I’d be curious as well. As far as I’m aware, the Google smart displays aren’t shipping with a browser at the moment, so you’d have to come up with some other creative way to display a dashboard.
That being said, plenty of people are using tablets like Google smart displays using Fully Kiosk Browser to keep a pretty screen on all the time (eg. photos/calendar/dakboard) and show their dashboard on motion. Some people choose to keep the tablet’s built-in assistant enabled and the device effectively becomes a voice controlled smart display.
On a related note, there was an example of a user running SharpTools on their Amazon Echo Show.
From what I understand, you have to ask Alexa to bring up the browser and she will go back to ‘show’ mode if you don’t interact with her for a while.
PS. That post has some other cool photos of people using the dashboard on cool devices: