How to fix BSOD SYSTEM_SERVICE_EXCEPTION + IRQL_NOT_LESS_OR_EQUAL + MEMORY_MANAGEMENT on Windows 11?

Hello all!
I've been experiencing nonstop BSODs every few hours, of all three types as mentioned in the title. Recently it's been mainly IRQL_NOT_LESS_OR_EQUAL and I've gone in eventviewer which mentioned my gameinput service failing each time i get a BSOD. I spoke to a few people that suggested it was an issue of RAM and that they experienced it, bought a new set and it was fine and as such I did the same, though 10mins after booting up the PC with the new RAM, I got another BSOD for IRQL_NOT_LESS_OR_EQUAL. Honestly, I'm completely clueless as to what to do. On my previous RAM I'd run MemTest86 + Memory Diagnostic Tool multiple times and had clean results so it's led me to question what is REALLY the issue with my PC :I.

Any help is much appreciated, thank you!