There is a forum thread on how to fix this…
Edit add ref: https://forums.opensuse.org/t/xdg-desktop-portal-keeps-crashing-on-hyprland-but-works-fine-on-kde/194975/4
I have no issues here with libvirt/qemu networking, I do however use bridge interfaces for my vm’s…
Aug 06 09:20:42 systemd[1]: Starting libvirt QEMU daemon...
Aug 06 09:20:42 systemd[1]: Started libvirt QEMU daemon.
Aug 06 09:20:44 systemd[1]: Starting libvirt storage daemon...
Aug 06 09:20:44 systemd[1]: Started libvirt storage daemon.
Aug 06 09:20:44 systemd[1]: Starting libvirt network daemon...
Aug 06 09:20:44 systemd[1]: Started libvirt network daemon.
Aug 06 09:20:44 systemd[1]: Starting libvirt nodedev daemon...
Aug 06 09:20:44 systemd[1]: Started libvirt nodedev daemon.
Aug 06 09:20:55 systemd[1]: Starting libvirt logging daemon...
Aug 06 09:20:55 systemd[1]: Started libvirt logging daemon.
Aug 06 09:21:49 virtqemud[307820]: libvirt version: 12.5.0