I did multiple stress test and passed and not overheating.
I played other AAA games countless of hours in the past 6 months and no crash (wasn’t playing MSFS for the past 6months) and other high FPS games (DOOM at 150FPS) no problems.
The crashes in the menu when I didn’t limit FPS were INSTANT like 2-3 seconds after the game finished loading. After I set the limit to 60FPS, no crash in menu.
I was still getting crashes after maybe 2 minutes loading in game but after setting a limit of 40FPS no crashes.