broulik added a comment.
This has been broken for most unique apps ever since Plasma 5.0, most noticeably with Kate. I once tried to look into KStartupInfo stuff but from what I can tell there's a "port me TODO" of some framework (KDBusAddons?) not being able to depend on another (KWindowSystem?) and thus a hook "should be created" which allows to fix this. But this never happened. REPOSITORY R124 System Settings REVISION DETAIL https://phabricator.kde.org/D8455 To: fvogt, #plasma, davidedmundson Cc: broulik, rikmills, plasma-devel, ZrenBot, progwolff, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart