More in-depth setup-guide for usage of kvmfr (see https://looking-glass.io/docs/B6/module/)
This setup was done on EndeavourOs (Arch) on Kernel 6.1.12-arch1-1.
QEMU-version 7.2 and libvirt version 9.0.0 .
Running cGroups Policy (if you have AppArmor, some things are different)
Check respective sections in looking-glass docs for other versions (specifcally QEMU <6.2 and libvirt <7.9)