Chat on the same side, instead of Skype look
And please remove the ballots and unecessary extra space around things. Compact layout is missing across this app.
Sean Ellis commented
The call for a compact chat option is the top UI request, and the third most popular request, with over 5000 votes - https://microsoftteams.uservoice.com/forums/555103-public/suggestions/17408641-please-create-a-professional-compact-chat-layout