The Compact ShutDown widget does not work "out of the box." After a little investigation, I discovered that to get it to work correctly in KaOS simply create the following symlink:
sudo ln -s /usr/lib/qt5/bin/qdbus /usr/bin/qdbus

  • demm replied to this.

    johnny Compact ShutDown widget

    Is that installed from the repos or added as an "outside" widget?
    EDIT:
    Looks like something not from the repo:
    https://github.com/varlesh/org.kde.plasma.compact-shutdown
    Thus not part of KDE SC or applications.

    Symlinks is not a way to maintain a healthy system, you should open a bug report for that widget so that they don't hardcode qdbus, many distros have multiple Qt versions so qdbus-qt5 is common, but qdbus should just be pointing to a Qt var for it.
    https://github.com/varlesh/org.kde.plasma.compact-shutdown/issues/8

    If they are not responsive to a bug report, then the proper fix is to edit all qdbus lines like https://github.com/varlesh/org.kde.plasma.compact-shutdown/blob/main/contents/ui/main.qml#L57 and point them to /usr/lib/qt5/bin/qdbus