Update: I rebooted it and there was some validation update and I managed to play for 45 minutes without interruption and then left the screen on for another 30 minutes and so far it hasn’t given me the crash screen in the photo

This post serves as a warning

Reseat display ribbon cable under the motherboard tray

Is your fan running? Might have been knocked loose during the install which would make your APU overheat pretty quick.

“Stop messing with it”?

Not helpful after the event, I know, but has your tinkering actually been worth it while invalidating the warranty too?

double check your connections