These are some of the reasons why I refuse to use the desktop application and on Linux at least, it isn't hard to define a shortcut that works like one; path ~/.local/share/applications/ms-teams.desktop

  [Desktop Entry]
  Version=1.0
  Name=Microsoft Teams
  Comment=Teams without Electron
  GenericName=Teams
  Exec=/usr/bin/chromium-browser --user-data-dir=/home/prussian/.config/ms-teams --app=https://teams.microsoft.com/_#/conversations/General
  Terminal=false
  X-MultipleArgs=false
  Type=Application
  Icon=ms-teams
  Categories=Network;InstantMessaging;
  Keywords=teams;messaging;internet;
  X-Desktop-File-Install-Version=0.23