I wanted to try a different DE to get things working, but with network manager down I couldn’t install anything else! Tumbleweed already had IceWM, but without any networkmanager control there either.
Course that was before I discovered I didn’t need any internet to finish the job and fix it. I assumed the update completed but broke something, and hoped against hope there’d be a fix issued quickly that I could further update to.
P.S. I assume you mean zypper dup, but perhaps you’re using the new Irish Culinary/Political Linux, and supper DUP is the right command.