Windows 11 BSOD 'SYSTEM SERVICE EXCEPTION' (NOW RESOLVED)

THIS HAS NOW BEEN RESOLVED

One of my freinds grandparents took my PC in, completely disconnected and removed the GPU, cleaned it and placed in back in, has shown no issues since, I believe personally that it was a knocked wire as I clean my PC regularly but I don't really mind as it all works now. Thank you.

I was playing the steam game Train Simulator Classic aka Railworks. I had Netflix running on my second monitor.

I was doing route building and I was in Play mode, and I pressed the 'World Editor' button and as I did this (and I don't know if this was just very bad timing), both screens froze with audio from the Netflix show still playing out of my headphones. I tried moving my mouse but to no avail. I tried to use 'Ctrl Alt Del' multiple times with no response. After around 10-15 seconds the audio became buzzy and I Blue Screened with the 'SYSTEM SERVICE EXCEPTION' message. After a moment it turned off, both monitors completely went blank and turned off, getting no signal. However, they didn't turn back on and the little GPU side LED light was still on indicating the PC was still on. After a while I pressed the force restart button on my PC and it rebooted as normal.

I went into the Event Viewer to find nothing, with Info from 20 minutes before and then 'The operating system started...' right after, so no indication of any crashes during the session itself that crashed. Going further up the log the only things I could see referecning it after reboot was 'The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.' and also 'The previous system shutdown at 10:38:02 PM on ‎1/‎27/‎2024 was unexpected.' Apart from that, there's no indication that it even crashed.

Given the information provided, does anybody have any idea what caused the crash and what I can do to prevent another one? Thanks!