The bloat is coming from inside the house!
Finally KDE will allow us to save our custom desktop layout. I might spend all my weekends customising my setup from now on.
How so? I want KDE to remember that certain programs should only open on certain screens
They just release a new version. Most distro should offer it soon. Not sure it will do what you ask tho, maybe with Activities?

How so? I want KDE to remember that certain programs should only open on certain screens

KDE has been able to do this for a long time.

System Settings --> Window Management --> Window Rules

Or, right click on the title bar of the window you want to make a rule for --> more aptions --> configure special window settings

From there, you can create a rule that forces a certain program to open its window at a certain location. And you can specify that location to be on the screen you want it to be on.

Thank you very much!