startlxqt is a shell script meant to initialize and launch LXQt sessions. It is as such similar to counterparts of other desktop environments like startlxde in LXDE or startkde in KDE.
It's main tasks are exporting environment variables, partly after performing corresponding checks, and launching lxqt-session, the LXQt session manager.
It is not meant to be run by users. Rather, it is invoked as backend, e. g. by script startx on virtual terminals or display managers like SDDM or LightDM, see section Example.
Desktop entry file stating startlxqt as binary needed to start LXQt sessions. Sourced e. g. by display managers.
None at the time of this writing. Bugs can be reported on https://github.com/lxqt/lxqt/issues.
To start an LXQt session from a virtual terminal (virtual console) add a line
to file ~/.xinitrc. An LXQt session will then be launched by running startx.
Display managers are making use of scripts like startlxqt automatically. Information about available desktop environments is provided by files $XDG_DATA_DIRS/xsessions/*.desktop, typically /usr/share/xessions/*.desktop.
File lxqt.desktop provided by LXQt is stating startlxqt in key Exec while making sure the session manager lxqt-session does exist by stating it in key TryExec.
lxqt-session(1) startx(1) sddm(1)
Desktop Entry Specification defining desktop entry files (*.desktop).
lxqt-config-session(1), lxqt-leave(1), lxqt-panel(1), lxqt-session(1).