What troubleshooting steps did you take so far? I would try these:

• different OS, maybe a live usb running fedora or ubuntu if it is possible to emulate the workload where this appears
• bios reset to defaults, no OC not even XMP
• memtest, either the memtest86+ boot iso or the runtime memtester can detect obvious errors
• long smart self test on OS drive and an fsck or scrub based on FS

Also the logs show a very old nvidia gpu which is not supported by the new driver. I don’t know if this can cause crashes, haven’t used one in ages, maybe someone else has more insight.

That monitor will hold it back. 1080p wouldn’t be bad if modern games run without TAA blur, but most games require it. Even a cheap 144hz IPS 1440p will give you a better experience.