Fisiu proposed a maintenance update of kshutdown:
https://build.opensuse.org/request/show/448994

User-visible stuff from https://kshutdown.sourceforge.io/releases/4.0.html

> * NEW: Use the standard Ctrl+Q shortcut instead of Ctrl+Shift+Q
> * Fixed: Support "--version" command line option
> * Command Line: Ignore "/?" option in non-Windows versions
> 
> [translation updates] 
> 
> * Fixed: Make menu titles less distractive and less annoying
> * Fixed: Disable incorrectly positioned tool tips in System Tray menu
> 
> Linux:
> 
> * Use uncompressed SVG icon
> * Adjust kshutdown.desktop
>   - Added StartupNotify=true/false
>   - Added X-SuSE-DesktopUtility category

Also adjusted in the spec file:

> - Don't run as root by default

I guess this is not fully compatible, but it removes the xdg-su call to run
with less privileges, so I'd be fine with that.