Laptop flickers and crashes

I've watched alot of videos but can't seem to find any that look like my problem. Screen will flicker occasionally and crash. Usually when im not in a game, but when im waiting for a game the computer will freeze. I've tried DDU on both the graphics cards and tried different versions of drivers and can't seem to fix this issue. Video of the issue in COMMENTS. It will do the flickering several times before it freezes. Sometimes it doesn't freeze, but it always ends up freezing. Doing the windows key cntrl shift b doesn't really help

I am considering buying a new motherboard if it ends up being a GPU or cpu issue. Please someone point me in the right direction. This laptop was gifted to me, runs pretty good for my games, and I only have this one issue. Its really upsetting me