Does this work better than OsmAnd in any way? The latter has been around for a long time and just works. Perhaps the best feature is that maps can be downloaded and used completely offline. It's the natural map app on a degoogled Android system like Graphene.
The main downside relative to commercial apps like Google Maps is that you often need to input a full address instead of entering a business name or something like "Burger King near me."
OsmAnd is painfully slow, I keep it around just for unique features like transport routes and surface quality.
CoMaps rendering is almost instant and map palette is easier on the eyes.
Unless you’re already familiar with it, OsmAnd’s interface is a complex and confusing mess. It does not “just work”.
CoMaps (and Organic Maps) aim to be much easier to use.
CoMaps has been around for about just as long, as it is ultimately a fork of Maps.me.
OSMAnd is great for nerds but scares normies. I'm active in a travel subculture highly reliant on OpenStreetMap data, and I have only pissed my peers off by recommending OSMAnd; I eventually learned my lesson and would suggest CoMaps now.