This feature is on the backlog. I will update you when we have more details to share.
This is working today in the web client on Edge & Chrome. The team is actively investigating feasibility in the desktop client.
We are working on the release of the Tasks application in Microsoft Teams that will aggregate data from Microsoft To-Do, Planner and Outlook with more capabilities on the way. You can see Planner data in Kanban views today, and the Tasks app will continue to support that view. In January we announced task publishing which will release with the new app. Get an overview at https://youtu.be/rTATVGroEsQ.
Great performance and user experience remain a topmost priority for us. Application launch time has seen improvements in the recent build. We will continue making improvements across the product including channel to chat switching and overall resource consumption.
Screen sharing on Chrome and Chromium-based Edge is now supported. We also have released support for joining meetings from Safari, Firefox and IE browsers, with some limitations. For details, please see the following link: https://docs.microsoft.com/en-us/microsoftteams/limits-specifications-teams#browsers