Sabotaged my ksplash theme to take forever to load, did a qdbus setstage call, once ksplash came up and processed the dbus call, the stage immediately advanced without any obvious sideeffects
It's important that the `setStage` calls are issued without blocking, but `startkde` script does fire-and-forget, KWin, KSMServer, and Plasma issue an `asyncCall`,
It is still somewhat racy as startkde launches `ksplash --pid` which then forks and returns the PID, so there's still a window between startkde reaching the point where it calls `kinit` has launched and `KSplash` has started up