Just picked up a Beam (Gen 1). For the life of me, I can't set it up as a Google smart speaker. I am able to link my Sonos and Google accounts, but when I try to use the Google Assistant app to set up the Beam for use as a smart speaker, the Assistant app (iOS) literally just crashes. The Assistant app recognizes the Beam, but then instead of finishing up the setup process, it just closes. Tried on my iPad - same result.
I posted on /r/sonos, and at least one other person is having this issue.