A new capability is available for users to post comments to Microsoft Stream videos stored in OneDrive for Business and SharePoint Online. By itself, this doesn’t sound like a great feature to have, but it means that Stream video and audio files are treated in the same way as other Office formats, and it delivers a feature available in other video platforms like YouTube and Facebook.
https://office365itpros.com/2022/05/03/comments-microsoft-stream-videos/
