I created a launcher with the filename Teams.desktop. and put it in the folder ~/Desktop/ and created a symlink for applications sudo ln -s ~/Desktop/Teams.desktop /usr/share/applications/Teams.desktop.
The icon on the desktop is correct 
I can also "Pin to dash" it will show correctly in the launcher 
,
but as soon as I open it, the app will be grouped together with the chromium icon in the launcher.
$ xprop WM_CLASS
will show
WM_CLASS(STRING) = "teams.microsoft.com", "teams-webapp"
lg shows 
This is the Teams.desktop file:
#!/usr/bin/env xdg-open
[Desktop Entry]
Version=1.0
Name=teams-wepapp
GenericName=teams-wepapp
Exec=chromium-browser --user-data-dir=~/.config/teams-wepapp/ --app=https://teams.microsoft.com/_#/conversations/ --class=teams-wepapp --name=teams-webapp
StartupWMClass=teams-webapp
Terminal=false
X-MultipleArgs=false
Type=Application
Icon=/home/marc/.local/icons/teams.svg
Categories=WebBrowser;
MimeType=text/html;text/xml;application/xhtml_xml;x-scheme-handler/http;x-scheme-handler/https;
StartupNotify=true
I would really like to have a second icon for teams (or even two as I'm using two teams accounts) to switch more easily and not having to search through all open chromium windows.
I tried using menulibre and a couple of instructions like this, this and this, it doesn't work. Maybe there are some changes in 23.10?
$ ps -e | grep tty
3556 tty2 00:00:00 gdm-wayland-ses
3567 tty2 00:00:00 gnome-session-b
$ ps -ef | grep -i tty
UID PID PPID C STIME TTY TIME CMD
marc 3556 3432 0 Jan31 tty2 00:00:00 /usr/libexec/gdm-wayland-session env GNOME_SHELL_SESSION_MODE=ubuntu /usr/bin/gnome-session --session=ubuntu
marc 3567 3556 0 Jan31 tty2 00:00:00 /usr/libexec/gnome-session-binary --session=ubuntu
marc 93693 64482 0 16:17 pts/3 00:00:00 grep --color=auto -i tty
