In this guide, we will create a virtual machine with GPU passthrough in PopOS 20.04
Download the script from here: https://github.com/pavolelsig/Passthrough_helper_PopOS
IOMMU guide: https://www.youtube.com/watch?v=UgIUPZWBu9c
Error 43 Arch Wiki: https://wiki.archlinux.org/index.php/PCI_passthrough_via_OVMF