Comment # 1 on bug 1177930 from Jonathan Brielmaier

Can you share the output of:
$ ip addr
$ wicked ifstatus all
$ ls /etc/sysconfig/network/

I think I have the same issue when using Leap 15.2 in QEMU (Hetzner Cloud). My
system has /etc/sysconfig/network/ifcfg-eth{0,1} but wicked sets up eth2 and
eth3. Which don't have those config files. If I copy e.g. ifcfg-eth0 to
ifcfg-eth2, I get this interface working.