Just got it finally working by myself

I disabled all checks for the PCIe passthrough in the config and it booted and the RTX 3050 was recognized in windows. Then I enabled one box at a time and it turns out that leaving "ROM BUS" and "All functions" disabled did the trick. Why, I can't tell, but I benchmarked the setup using Cyberpunk's built in benchmark (yes, not a real benchmarking software but it is a gaming setup so it should be enough) and there was a difference in 0.13 in avg fps so there is no loss in performance with these two things disabled. Thank you
@leesteken for trying to help me, apreciate it, really

Hopefully someone in the future can profit from this threat