I use it frequently. It's not. Especially regarding updating businesses, small roads (and road quality), paths, opening hours, closed roads&paths/construction sites, bike maps, everything regarding detailed information basically. I have been adding bus stop markers for blind people or types of pedestrian crossings, recycling containers, street light, to OSM with StreetComplete. There is so much more there. Next time, please elaborate on such blunt statements since I believe it may be worse somewhere but it's not generally.
Apple: (I guess Apple maps can't be linked to on the web?)
It also helps a lot if your government can be persuaded to open up their geographical data. All the building outlines are right there on the map in the Netherlands, up to date to within weeks, because the Dutch OpenStreetMap volunteers work with government data that is permissively licensed and cleared for use with OpenStreetMap. In fact, mistakes in that data set are also picked up by the local OpenStreetMap mappers, and reported back to the government cadastral map. Everyone benefits.
FYI, you can link to Apple Maps [0]. The equivalent URL isn't really much different [1]. A bit unfortunate that there's no consensus on the URL params between providers, though.
Trying to open that link on macOS from either Firefox or Safari shows a modal asking if I want to open it with the Maps app. I'm not sure what happens on iOS, but I'd expect something similar.
IMO, the lack of web client for Apple Maps makes it the worst of the bunch. Vendor lock-in is a tragedy.
I've been trying to use OSM more over the last few months, but it's hard to compete with Google on their home turf. Although OSM started to become more appealing as Google began requiring you to enable all sorts of data tracking for many or its features to work. If you disable location tracking you run into all sorts of bugs.
Absolutely not. I used osm all last year while travelling. The fact you can download offline an entire country worth of data beats the hell out of Google Maps' offline mode. Also the searching by category is brilliant.
And even where the actual map data is superior, the "we know better what you want than yourself" approach to UI is infuriating: Hiding of map detail/information based on zoom level is LCD design - you have to zoom in ridiculously close to get most of the info you want, and even then you usually can't be sure that the POIs shown are complete.
And don't get me started on "Oooh, you cleared this text field? Lets zoom/move around like crazy!1"
Gmaps is only better in the POI information even much more now as they created this gamification of adding information with Local Guides that they push heavily.