This feature request has been declined.
Currently if you have the Teams app set to run in the background upon clicking the “X” in the upper right, the app stays active only in the system tray. If you receive chat messages, it still remains in the SysTray.
However, if you get an @mention, the focus pulls it to the Taskbar. This is by design since you are getting directly mentioned and some action is typically expected. This is a key design element which the team does not wish to deviate from.
We appreciate the suggestion but will respectively decline it at this time.
Thank you for the feedback and suggestion.
We’re currently working on defining a compact mode experience. I will post more details when we have more to share.
We know so many of our customers use Linux and we want Teams to be available for everyone. Stay tuned for more information soon.
We acknowledge the customer demand for Private Channels and have been hard at work on it. Private Channels is currently in preview with a select group of customers. We expect to release the feature to the public later this Fall, and will update here when we are starting to roll out to all customers. We appreciate all the feedback you have provided to us on this forum and thank you for your patience.
~AlexLuke Sipple commented
From a permissions standpoint... I hate that you cannot create channels under a team with it's own permissions. For example: all of IT may be invited to a team, but specific teams under it should be able to lock down channels.
If we want to mirror/replace our Slack setup, we'd need like 100 teams versus teams broken down into channels.