nm-applet man page
nm-applet — network monitor and control GUI applet
nm-applet [ OPTIONS ]
nm-applet is a GTK‐based GUI applet to monitor network status and devices and to start and stop network connections managed by NetworkManager. nm-applet is normally started at login by the desktop session manager and does not need to be run manually. nm-applet conforms to the XDG System Tray specification and requires that the desktop environment provide a System Tray implementation in which the applet will be embedded.
NetworkManager(8), NetworkManager.conf(5), nmcli(1), nmcli-examples(7), nm-connection-editor(1), nmtui(1).