when:
window behavior | movement | screen edge snap zone = none
(and perhaps also when: window behavior | movement | window snap zone = none)
then:
when dragging a window above screen, and its border goes slightly ABOVE the screen, then when moving the window to the left and right, it does not refresh as it should, and may get frozen in one spot. it feels very laggy and awkward, feels buggy.

window becomes normal again when the window is dragged back into the screen area.

i think this is a remnant of issue 489334, which crashed the whole computer.

distro: artix linux, base install, open-rc init. i installed plasma myself from the repos - this is not a pre-made artix-plasma image.

i only have 1 monitor. i am not talking about any 2+ monitor situation.