HELP!!

I have a HP Victus 16-s0095ax R7 7840HS, RTX 3050, 16GB, 512GB I have been getting a flickering issue on the screen and RGB lighting on keyboard while trying to play any game. Also the power button doesn't work during that time.

It first arised after 1 yr of buying. Its motherboard got replaced. But now again after 6 months same problem has arised. I need help plss. This thing cost me Rs. 83K...