It's been years since I used this, but I wanted to make a note.
The OVMF files from (what I recall to be this package) were different than for example edk2-ovmf-fedora-bin
and the main version would freeze one me when attempting to do VFIO GPU pass-through.
So if you encounter unusual problems, try swapping the files out for a version from another distro like the fedora one maybe.
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