~/.config/libvirt*, non of them seem to contain config file of created VM, where is the config stored? I'm not running virt-manager as root user.
Oddly enough, under
/etc/libvirt. virt-manager doesn't run as root, but it communicates with libvirtd that does.
Client information (eg connection strings) is stored in the
dconf (accessible with
virt-manager config is on