This feature is still in the works. There was some adjustments to the overall strategy.
I’ll try to get some additional details and share them with you.
-WarrenGordon Byers commented
What is the official advice for Windows S-mode users when you stop the preview app working next week?
We have been iterating on different designs and are starting to test internally. I don’t have a timeframe but will keep you posted.
This feature is on the backlog. I will update you when we have more details to share.
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.
This continues to be on our backlog due to prioritization of other work items. We will update when there is more to share.
We are working on a design with more density in mind. Until this design is solidified we are putting this item back to Under Review.