u/MgReality

Does anyone know what could be the cause of this

Background info: i got this laptop 2 weeks ago, it was fine until yesterday. The screen started glitching when i was browsing. I did some troubleshooting and found a temp fix which was just staying in 60hz, every time i went back to 165hz, glitch. I already updated drivers and reinstalled it multiple times. I tried connecting it to an external display and the glitchy flickering was not visible on the other display