[starkparker]

Gnome Boxes is an attempt at a similar interface, but yeah, it's not quite as polished.

[westurner]

virt-manager supports more complex libvirt XML configurations, can also manage VMs created by Gnome Boxes, but doesn't yet have IOMMU/PCIE passthrough with OVMF UEFI device selector and vm configuration gui: https://virt-manager.org/