Dolphin running on MATE desktop doesn't care about global single click setting STEPS TO REPRODUCE 1. Login with MATE desktop 2. Login with KDE desktop OBSERVED RESULT MATE desktop supports KDE system settings: Control center -> KDE system settings -> Desktop behaviour -> General: Click behaviour = Single Click to open files and folders On MATE desktop the single click selection in Dolphin doesn't work, on KDE desktop it does! EXPECTED RESULT Single click selection of files and folders on both (all) desktops. SOFTWARE/OS VERSIONS Linux/KDE Plasma: openSUSE Leap 15.3 / KDE + MATE (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION