Hi,
I'm not running anything particularly out of the ordinary settings or drivers wise. Standard NVidia drivers, no scaling UI scaling or anything, the only overlays enabled which could be hooking in are Microsoft/XBox game bar all the time. I'll have a fiddle and see if I can pin it down to a particular other program, it's odd though as this is the only software I experience this with.
That does give me a thought, most of the time I open Aquasuite's UI when I'm already playing a game. That should be pretty easy to reproduce, I should be able to find out if it's gamebar, steam, or Ubi etc. overlay related fairly easily.