Microsoft has released the Communities app for Teams. The app integrates Yammer into Teams as a pinned app or in a channel tab. The pinned app mode is most functional, even if the channel mode includes a Share to Channel option. Overall, it’s a nice integration, which begs the question as to when the same might be done for OWA?
https://office365itpros.com/2020/04/22/yammer-communities-app-teams/
