I am sorry you continue to have such difficulty with OpenMandriva Lx. We do realize users trying to do things in OpenMandriva Lx the way they do things in some other distro can lead to frustration. OpenMandriva is unique, intentionally, and has no goal to be like any other Linux distro.
OpenMandriva is designed to be a Community distribution of Linux. OpenMandriva is a small group of all volunteer, part-time, and unpaid contributors. Things get done when someone in the OM Community volunteers and does it. When people are helping you they are donating their time, knowledge and skill to you. If you want something done join the Community and do something to make it happen.
IMO printer support in OMLx is not ideal.
We do have an OpenMandriv wiki. Typing printer in the search window leads to this.
There is also a Forum Resources section. The Forum Resources contains an article How to configure printer in OMLx.
I do not know if either of these would have helped in your situation.
These problems existed when OMLx 4.3 was first released but were fixed within days. @TPG fixed these issues in the package print-manager-21.12.2-2 . Assuming you are in Rock/OMLx 4.3:
User Note: Recommended Rock software upgrade procedure:
$ sudo dnf clean all ; sudo dnf up
User Note: Recommended Rolling software upgrade procedure:
$ sudo dnf clean all ; sudo dnf dsync
User Info: dnf up=dnf upgrade
dnf dsync=dnf distro-sync