It's storytime.
My laptop (Dell XPS OLED 2019) started suddenly shutting down (fans still running but screen completely black) during usage a month ago. It started when I was playing some Rocket League. Then it started happening during normal usage. Then the laptop wouldn't turn on anymore. Sometimes it would still turn on after multiple tries, but would shutdown after a couple minutes. I managed to run some Dell diagnostics software during the limited time it would still turn on and it only told me the battery had worn out a bit (which I knew already since it would only last half as much time on battery compared to when I bought it). I had had some issues with this laptop before (broken power plug...) and - while I suspected a CMOS battery failure - I didn't feel like spending any more money fixing this laptop and started out planning a new build to replace it.
Bought a NUC Extreme 12, some RAM, and a Intel ARC A770 graphics card. Only component from my old laptop which was transferred over was my SSD.
Installation goes fine, I update the OS to Windows 11, start up some Rocket League and after an hour of playing, it suddenly shut down again, just like with my laptop: black screen, fans still running.
Is there any chance it's the SSD that's faulty? Running diskdrive get status in the command line returns "OK". Or is it just the immature Arc graphics driver throwing me for a spin? I don't know anymore at this point.