Random BSOD's while gaming on new PC

Hello everyone,

I just bought a new custom built PC, and it's been crashing randomly.
It crashes on both high end games (Cyberpunk 2077), lower end new games (Valheim), and older games (Cities Skyline). Strangely enough CoD runs perfectly fine.

I'm troubleshooting together with the guy who built the PC, and together we've already done a few things:
- All drivers are installed and up to date (updated multiple times, also tried older versions).
- Furmark runs without crashing for 15+ minutes.
- Prime95 runs without crashes for 2+ hours.
- RAM sticks exchanged, and with with only 1 of the 2 sticks, in either slot.
- I've tried with and without known 'buggy' software (Razer sw for my mouse + GeForce Experience for the GPU).
- Tried with my main Razer headset and a bluetooth headset.
- Tried with my main Razer mouse, and a standard Dell mouse.

PC guy ran Cyberpunk without crashes for 4+ hours (while it usually crashes every half hour with me), with the exact same set up as me, sans mouse and keyboard, but with me exchanging those didn't help.

I've tried to take a peek at the dumpfiles myself, but they might as well be Chinese lol.
Both the PC guy and me are at our wits end.

Attached is the log file from the sticky, and the specs I filled in are up to date.

Any help would be appreciated!

Cheers,
Stefan

*EDIT*: All Windows updates are also installed, and the AV software is up to date, and returns no errors.