Screen glitches and weird flickering

Hey folks, I've started having these glitches yesterday and have no idea what might be their source. I mingled a bit with the display port cable and it stopped so can this be really something about the cable? Or maybe the gpu-end DP port? It's glitches on Samsung Neo G7 with rtx 4080 Super Aorus Master and started happening out of the blue and I'm sacred it might be a more serious hardware problem :(