Solutions
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Tristankin's post in Upgrade to 6.9.2, Getting freezes requiring hard reboot every week or so was marked as the answerIf anyone else stumbles across this. It was a hardware issue. I replaced the PSU and RAM, still got crashes. Ended up being the CPU, crashed whenever it was running a version newer than 6.8.3.
I recently replaced the i3-9100 with a i7-9700T and the issue has been solved.