SDDM on multiple monitors, duplicated display, incorrect layout and incorrect focus issues

Maybe I’m misunderstanding everything, but my session is Wayland. Just from the numerous tutorials and solutions I looked at, I was given the impression that SDDM itself is X11. Either way, I read along that and tried some of the solutions but it seems both the people in there and myself weren’t able to get it to work? It looks like?

I tried the solution here as well, but that didn’t seem to change anything:

I spent a few hours surfing the forums and wiki too, to no avail.

If X11 is seemingly borked for multi-monitor setups for SDDM at the moment, would it be possible to run it on Wayland instead? I mean, that’s pretty much what I use exclusively anyway. And if not, is there maybe an SDDM alternative?