There is a thread called “AirPlay 2 Available Today” in this forum: Airplay 2 Available Today. The date next to it says April 12th, so at first glance, it looks like you guys support it. I’d suggest some better moderation of these forums because there seem to be posts by people who are confused as to your support. You should probably modify the title of that thread.
From what I understand, the Sonos:One Gen 2 only supports AirPlay 2 and not AirPlay 1, so it won’t work anyways. I’m going a different direction at this point with 2 B&W Wedge speakers and a Bluesound which all seem to use RaaT, so it’s moot now.
Thanks for the reply.