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.
My issue is I can't use the "X" on the upper right to close the main MS Teams window. Clicking it once does nothing for me (seems like a bug).
This item is still under consideration by the feature team.
Similar to Slack, Fleep, Skype, and others, the systray icon should change if a new, unread message arrives. Part of the problem is that the Settings > Notifications area of the Windows app doesn't have very many options. I would like to see an option where I do NOT get a pop-up notification on the lower right corner. Some messages may be private, so I don't want someone walking by to be able to see them. Instead, I should be able to DISABLE pop-up messages and get a systray icon change that visually tells me there are new/unread messages -- again...similar to Slack, Skype, etc.