Quote Originally Posted by tsu2 View Post
Persistent logs should be enabled by default, no need to do anything yourself.
The default is "Storage=auto" AFAIK, and that means that persistent storage is saved only if /var/log/journal exists, since that directory is not created automatically if needed with the "auto" option.
Checking (or creating) that /var/log/journal is likely all that is needed (sorry cannot check for current Tumbleweed myself at the moment).