Nest doorbell incompatible as play media source

I tried in the past to use the stream service to play my nest doorbell in Chromecast with no luck.

Today I learnt about the new play media action, but it only shows my vacuum map and at the bottom I can see it shows “1 hidden incompatible device”

The funny thing is that I can see the streaming in HA from the Nest integration and have some automations already when the doorbell rings.

What am I doing wrong?