I am not sure exactly where to pose this question so if this is not the correct place, please correct me.
Currently, I am running LXDE as my desktop, and I love it: simple and fast. However, it would appear that I mistakenly have removed the Shutdown button from the Application Launch Bar: https://pasteboard.co/IeZ3Ka6.png https://pasteboard.co/IeZ3Ka6.png
I have looked through all of the entries and still can’t find what would correspond to the Shutdown icon.
Although LXDE is still offered as a legacy Desktop option by openSUSE,
For several years now, the entire LXDE team has moved to building the LXQt Desktop.
I recommend switching to LXQt to get the benefit of their work.
In any case,
IIRC the last times I logged into LXDE,
There should be a “Logoff…” Poower option from the application launcher button,
When you click on that, you should see all your power off options… Shutdown, restart, poweroff.
This is an idiosyncrasy shared by many Desktops including XFCE and some WMs.