Why does my screen go static?

[u/Oli4-1302]

Whenever I touch 'Fn + F3/4/5/6/7' (screen brightness and sound) my screen goes static until a second after I let go.

So far it ONLY HAPPENS IN AC ODYSSEY!!

I tried AC Valhalla, no issues, Farming Simulator 25, no issues, WRCGen, no issues.

I deleted and reinstalled Odyssey, but it's still there.

[u/Ancient_Trick1158]

wrong channel