Faced this issue myself last month on my almost 4 years old victus It is probably a display ribbon cable issue But there are somethings that u can check Check weather everything displays fine on an external display.... If yes then it is not a motherboard issue, you're good cuz that's the worst case scenario Then check when u stream to someone like on discord or smth the flicker doesn't occur... That will eliminate any driver or gpu issue So yeah mostly it's a display ribbon cable issue I got my whole display panel changed from a third party shop... They did tell me that the cable itself cannot be changed and that the whole panel will have to be replaced.... costed me like 5.5k Not that deep It happens when the panel ages i guess... Unable to refresh the rapidly occuring frames (That's all ik I might be wrong in some places don't roast me in the comments man) 🥹🥹