Correct! This is how I handle it, so far; also adding an “alias” to the new PKM MOC.md → [[PKM MOC|PKM]] which enables the reading in other notes when you are direct linking.
But, I think that I prefer what you’ve mentioned: just using PKM and adding a type hashtag, but also including the PKM MOC as an alias into the YAML.
Front Matter:
tags: Graphgroupings🕸️, Graphgroupings🕸️/LabelTag🏷️, Atlas/MOC🗺️
aliases: PKM MOC, Personal Knowledge Management