What is the "Leave" option on the power menu in lubuntu?

Question

In the default panel on Lubuntu (LXQT Desktop), there are multiple power options:

What does the "Leave" option do?

Answer 1

A bit of searching led me to the GitHub repository for LXQT and this issue about customizing the 'Leave' options.

So the repo contains the lxqt-leave.desktop.in file:

[Desktop Entry]
Type=Application
Name=Leave
GenericName=Leave
Comment=Leave dialog
Exec=lxqt-leave
Icon=system-shutdown
Categories=System;X-Leave;
OnlyShowIn=LXQt;

Comparing that to the lxqt-shutdown.desktop.in file:

[Desktop Entry]
Type=Application
Name=Shutdown
GenericName=Shutdown
Comment=shutdown the machine
Exec=lxqt-leave --shutdown
Icon=system-shutdown
Categories=System;X-Leave;
OnlyShowIn=LXQt;

There is a difference in the Exec argument here. While 'Shutdown' specifies lxqt-leave --shutdown, the 'Leave' option simply runs lxqt-leave.

So what is the behaviour then? The man page has some information on this:

lxqt-leave is a graphical Qt tool for easily triggering leave session actions: logout, reboot, shutdown, hibernate, and lock screen. If run with an argument, the dialog is not shown and the action is executed directly.

So the documentation says the the 'Leave' option (which is equivalent to running lxqt-leave) should give you a dialog from which you'd be able to select login & power management options, such as logout, hibernate, shutdown, reboot. I am not a user of Lubuntu, so I can't be more specific about why that does not happen for you. Perhaps you can try running lxqt-leave from a command-line and see if it works as intended or if it throws an error.