It would be nice to be able to test the Microphone and Speakers, to make sure everything is working.

The icon for delivered messages looks like a clock now, which indicates it is not yet delivered. To make more clear a message is delivered, make it green, or remove the circle on the check mark.

too much echo.............. bad on teams.... is ok on skype.

While controlling remote screen in full-screen mode, I am unable to access lower part of the screen. Please fix the issue ASAP.

I've got tremors, and the Request Control button is way too easy to hit when I want to look at the chat or participants list

Please move the button, add a confirmation, or allow the request to be withdrawn.

I would really like a "multi-tab" feature to quickly switch between files or refer to two files on different tabs at once.

Change the MUTED mute button color to highlight that its MUTED or OPEN ( RED/GREEN) background ( not just text )

The Teams navigation bar includes "Activity", "Chat", "Teams", "Calendar", "Calls", and "Files".

Under the 'more options' ellipses, other useful tools are available such as "Shifts" or "Planner". If a Team is making use of one of these other tools, it would be convenient if that tool were able to be pinned into the navigation bar for easy access for the entire team.

It would also be convenient to be able to re-order the navigation bar for team members to prioritize tabs they use most often.

When joining from a Computer with Teams installed - It's awesome that the dial out function is enabled from the landing screen.
Many users say they miss that the functionality is even there because of the placement and the fact the coloring blends into the background.
Can the functionality be made more prominent?

would love to be able to change skins like you can for outlook

Messages currently come in with latest content at the bottom of the page. It would be best to use the same format as Yammer and other social media platforms to avoid confusion.

It should also move the "Start a new conversation" to the top so that its clear you're adding a new conversation and not responding to a prior thread. The actual version if confusing for new users and a lot a unwanted new threads are created because of this.

Keyboard shortcuts for navigating unread messages and conversations and marking them read/unread. Slack has really good keyboard shortcuts for navigating between unread teams and conversations, and it's a big productivity-booster. Vy

To provide answer on just one message within many

Provide an option where you can turn off the automatic hiding of teams that haven't been used in a while. The current algorithm has a glitch and it is hiding the Team I use the most. I have to "show" it every day!!!

The Planner app in Teams provides an overview of tasks assigned to a user in various Teams channels.
Typically it would be useful to be allowed to navigate back to the actual task within Teams to review the task within the context of the channel/tab/etc.

Microsoft, please go back and make the contacts pane collapsible again! Not only is this a privacy issue, if someone comes over, the pane just takes up way too much space!
This is an inconvenience,, especially since there is not even an option to make it smaller.
Get it together Microsoft!

Make it easier to highlight and copy parts of the message without the "More Options, Bookmark, Like" option appearing.