I started using various music distros (KXStudio and Fedora Jam). One of the annoyances is that KDE does not remember the settings for dual monitors. Thus every time after logging in the screens need to be fixed. This seems to be a longstanding bug.
Turns out there is a simple fix, disable “KScreen 2”
Go to System Settings -> Startup and Shutdown -> Service Manager (on the left) -> disable KScreen 2