Brand new PowerSpec G758 has been intermittently crashing to desktop in games - what should I do

I bought this PC only 2 days ago, did Windows Updates and installed latest Nvidia GameReady Drivers (581.80).

I have already had 4 crashes to desktop in various games I've tried out. 3 of them were UE5 titles (Black Myth Wukong benchmarking tool, RoboCop Rogue City and Enotria the Last Song) had the same type of crash - image freezes, followed a while later by a crash to desktop. I found the crash logs for RoboCop with "DXGI_ERROR_DEVICE_REMOVED" error. Couldn't find the crash log for the other two .

The final game was Witcher 3 which crashed to desktop without freezing first while reloading a save after death. I was able to load the save and die and reload the same save again later, so it wasn't a corrupted file. Witcher 3 made a 136MB dump file which I don't know what to do with.

Event Viewer's only seemingly relevant errors were 3 nvlddmkm errors at the same time as one another (so would only explain one of the above 4 crashes, perhaps Enotria):
"Error occurred on GPUID: 100"
"Graphics Exception: ESR 0x407020=0x2000 0x407028=0x100 0x40702c=0x124cd980 0x407030=0x0"
"Graphics Exception: SKEDCHECK06_REGISTER_COUNT failed".

I thought of maybe updating the motherboard BIOS, but could note even find my current one (2.A02 dated 8/1/2025) on the official BIOS download page for this "PRO B850-VC WIFI (MS-7E56)" board at https://www.msi.com/Motherboard/PRO-B850-VC-WIFI/support . Plus, the question I asked on the G758's store page was answered with "here is no need to update. The latest BIOS only improves compatibility with AMD 8000-series CPUs. We do not recommend updating your BIOS unless there is a specific issue that the newer BIOS can fix, in which case, please reach out to us on our community site and we can provide a tested BIOS solution."

So, here I am.

I've also found some artifacting in Enotria when not capping the framerate and in RoboCop at 4k Native resolution with DLAA, but the latter one went away as I was tinkering with settings and I was unable to reproduce it later.

I ran FurMark stress test for a few minutes, no crash or artifacting. Thinking it might be VRAM related, I ran Control & RoboCop at 4k simultaneously, no crash.

I don't know where to go next from here. A clean reinstall of the GPU drivers? Rolling back to some older GPU drivers? I would preferably like to solve this without needing to bring the PC back to Microcenter for service, especially as I have not found any way to reliably reproduce these crashes. They just happen randomly.