Multiple BSOD including during system restore

I built a new PC a month or so ago, working fine until this weekend. Im now getting frequent (Black) screens of death, with various different error codes. I've not been able to catch them all due to the short time the code is displayed, but they have included

IRQL NOT LESS OR EQUAL ATTEMPTED TO WIRTE TO READ ONLY MEMORY MEMORY MANAGEMENT CRITICAL PROCESS DIED PFN LIST CORRUPT

PC specs are

CPU: AMD Ryzen 5 7600X Motherboard: B850 live mixer Air cooling: thermalright assassin spirit GPU: powercolor Radeon 9700 reaper 16GB PSU: Be Quiet pure power 13 650W Storage: Crucial P310 2TB NVME RAM : Kingston fury beast 2x16gb ddr5 5200MHz

I'm struggling to work out what could be the cause of this sudden failure. So far I've tried

System restore (there was a Radeon update on Friday that I've tried but failed to roll back) Reseating the RAM

I'm not sure what my next steps are. I've been surprised how quickly it's gone from working well to almost non-functional, and I have limited experience with this. Help greatly appreciated.