graesslin added a comment.
You could check for env variable QT_QPA_PLATFORM REPOSITORY R120 Plasma Workspace REVISION DETAIL https://phabricator.kde.org/D7188 To: davidedmundson, #plasma, mart Cc: graesslin, cfeck, mart, plasma-devel, ZrenBot, progwolff, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, lukas