rikmills added a comment.
I don't think it has an effect here, but for completeness just in case, I should mention that both Neon and KDE have a patch to #startkde/startkde.cmake https://packaging.neon.kde.org/plasma/plasma-workspace.git/tree/debian/patches/kubuntu_startkde-qtpath.diff?h=Neon/unstable though I could be mistaken, so would not like to leave that fact out of the discussion. REPOSITORY R120 Plasma Workspace REVISION DETAIL https://phabricator.kde.org/D7257 To: fvogt, #plasma, mart Cc: rikmills, mart, plasma-devel, ZrenBot, progwolff, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, lukas