Consider using libdbusmenu-qt library

https://github.com/helloSystem/Menu/blob/actionsearch/src/appmenu/dbusmenuimporter.cpp mentioned that it originates from the dbusmenu-qt library.

Possibly it would be worthwhile to consime that library instead of having https://github.com/helloSystem/Menu/tree/actionsearch/src/appmenu in this repository?

https://code.launchpad.net/libdbusmenu-qt seems actively maintained.

Let's revisit this topic in case we ever run into issues originating from https://github.com/helloSystem/Menu/tree/actionsearch/src/appmenu.

But be aware that we are doing some trickery in there (e.g., handle menus for the Desktop, replace "Datei" with "Ablage") which would need to be ported over.