It depends on what you use Google Maps for. For straight-up navigation, CoMaps is good. And I mean it's good at the navigation itself for the most part. Although sometimes when you enter in an address it thinks you're referring to the entire street. But most of my favorite restaurants and a lot of locations that have been open for a while aren't on it, which I've been happy to add. Locations that have been closed for a while are still on it, which I've been happy to delete.
But if you use Google Maps for discovering places or looking at pictures or seeing reviews of businesses, or if you do a lot of multi-stop trips, comaps doesn't have those features even in the littlest, tiniest bit, and in that sense there is legitimately no (Foss) competitor. For instance, if you're out and about on a vacation and you're trying to find a restaurant, nope, comaps is useless for that. If you're trying to plan a trip by seeing what's around somewhere, nope, useless for that too.
It really just focuses on navigation itself, and it does a pretty good job of that. I use it to get around when I drive.
On the plus side, it worked without internet!
So you're saying that you can't drive this speed limit on those roads because of the amount of traffic, right? not because of some sort of geographic feature or shape of the roads?
Yeah...hard to imagine much of a way to get traffic updates in comaps, or any OSM project honestly. It seems like it would have to be a separately maintained service. And either way, I'm guessing the number of users that would buy into something like that just wouldn't be enough to get meaningful data most of the time. Especially since it pretty much relies on tracking people's locations, which I feel like is counter to the purpose of most people's reason for getting into those services.