You have it on Wayland too ?
I didn’t know it was the case since release. I used to play on X11 as I have an Nvidia card. I tested only recently with the 555 driver update and plasma 6.1.2
I’ve found a workaround.
The issue occurs only with the gnu/Linux native last epoch. If I enable the compatibility mode, with proton (ge or any one) it fixes the layout.