Recs.
Updated
SpecsUpdate
Pros
Pro The tab interface is great
Using the tab interface you can integrate an Asana list, an entire Trello board, a power bi report, a Word page, a PowerPoint presentation, and let everyone edit it and view the edits in the tab. You can also add a file manager thanks to Onedrive or Sharepoint or a video training hub.
Cons
Con Using multiple MS accounts is not possible
What do you do, if you inteface with one organization using their MS account, and with another organization using a different MS account? If you want to use Teams with both, good luck. And God forbid you have a personal and Office 365 for Business accounts linked to the same email. Get ready to type passwords a lot.
Con No Linux support
No official Linux support and MS have hard disabled certain call and screen sharing features on Linux browsers that work if spoofing the User Agent. User voice on this popular feature request (currently 5th most requested) is non-responsive for 6 months at the time of writing this.