This feature request is working its way through the backlog queue. No new details are available yet.
Share documents from sharepoint in the chat general without create a copy
allow to attach a document from sharepoint through the chat general of the team
This is currently in internal testing rings at Microsoft, and the feature team is targeting a release to the public in early Q2.
~Alex & the Teams team
Instead of notification for outlook when you create a task on Microsoft Planner, create notifications for Microsoft Teams, the we avoid the spam that Microsoft Planner create