A couple zypper dups back my computer started freezing on shutdown.
It gets to the normal fullscreen terminal that you see directly before shutdown,
but then just stops there.
One time it showed the infinity symbol with the three dots below it indicating progress.
After a long time the progress indicator froze.
I just did a zypper dup, and was able to ‘shutdown -r now’;
However, once back in lxqt I tried to shutdown via the menu,
and it froze again at the terminal.