Teams for Linux Flatpak ======================= Use Flatseal to set the following: socket=fallback-x11: OFF device=all: ON Create the file "~/.var/app/com.github.IsmaelMartinez.teams_for_linux/config/teams-for-linux/config.json" with the following content: { "closeAppOnCross": true } This will close Teams when the × button is pressed.