SUMMARY STEPS TO REPRODUCE 1. openbox --replace / mutter --replace 2. Raise KRunner by using a shortcut 3. OBSERVED RESULT KRunner is invisible EXPECTED RESULT KRunner is visible SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: 6.0.80 KDE Frameworks Version: Qt Version: 6.6.1 ADDITIONAL INFORMATION Since kwin_x11 will soon retire, it's time to fix Plasma bugs on other window managers. I suspect PlasmaWindow breaks window positioning on other WMs.