Jul 12 2022 02:58 AM
Loop components are now supported in OWA. The implementation is reasonably close to that of Teams chat, but has some essential differences due to the nature of email. The current state of Loop components mean that they are highly suited for internal communication but not for collaboration outside an organization.
https://office365itpros.com/2022/07/12/loop-components-appear-owa/
Jul 12 2022 03:38 AM
If someone really needs Teams Chat functionality in OWA or Outlook, then there is a third-party add-in called teamsTALK (https://teamstalk.app). The app is an MS Teams chat integration into Outlook or OWA.