Yes. Fresh install. I’m pleased and encouraged to see that you have presence of mind enough to realize that on your on.
Realize that OpenMandriva is not Windows or Ubuntu. In OpenMandriva there are some things that have to be done the OpenMandriva way. There are also things that are general to all Linux distributions. Wish our documentation were more complete. We are working on that and several other things as fast as dozen all volunteer/part time contributors can. There is more documentation type of “How To’s” here.
As far as the learning curve there most certainly was a learning curve for Windows and/or Ubuntu or whatever other OS anyone has used. You may not remember it or for some people you may have learned when you were very young but there was a learning curve.
Another great tool for finding answers to things is to copy and paste the exact error and use that as a search term for internet search. This may work better if the command output is in English. That is what LC_ALL=C option does.