The motherboard is MSI B550M Mortar Wifi and the bottom PCI-E slot is connected through the PCH. After booting, the amdgpu kernel module just crashes, even on fresh USB live-boot of fedora 33 and ubuntu 20.10. I do not have the experience to dissect the issue and as a result, would require instructions to investigate this further. In the meantime, I’ll just leave the graphics card out of the system.
journalctls: