SUMMARY With KDE 4 in KDE menu editor in advanced tab, we get the ability to check a property "minimize in systray". This feature disappeared with KDE 5. This feature was replaced by the app kdocker. But more and more Linux OS uses by default Wayland and kdocker is not compliant with it. It would be a good thing to revival this feature. Thanks
This has been considered and rejected, sorry. *** This bug has been marked as a duplicate of bug 428873 ***