That’s right, but with OMD you have one installation package and get all the tools ready to work, including Grafana, NagVis etc.
There is a plugin for OMD:
In OMD check_mk you have a nice web UI for making backups and you are able to roll back every action, you made…
I’ll give it a try. I tested Zabbix long ago so I don’t know how it improved…