Return of Reckoning

Have you tried to re-install plasma and potentially all of it's packages after the install ?

`sudo pacman -S plasma kde-applications`

Afterwards I remove kweather, merkuro and kmix as they seem to mess up other things:

`sudo pacman -R merkuro kmix kweather`

Reboot - then retry.

Cannot reproduce this under both KDE Wayland and Gnome Wayland on a triple monitor setup - one is on top and the other one on left.
KDE Fix - only requires the tick in winecfg to have capture mouse in fullscreen - used winege 8.26 which comes with install script.
Gnome fix - requires both proton ...