Can you use OpenStreetMap like Google Maps?
I tried to use it to list restaurants but the UI reacted like nobody had ever tried that before
https://cartes.app is trying to do this. OsmAnd is quite usable as well.
For navigation there's Magic Earth (can route around traffic jams), TomTom, and Scenic. OsmAnd can also do routing.
Partly, with Organic Maps or CoMaps.
However, in my opinion TomTom (https://play.google.com/store/apps/details?id=com.tomtom.spe... or https://apps.apple.com/us/app/tomtom-maps-traffic/id14381065...) is still the best way to use OpenStreetMap for navigation since it combines OSM data with their own real time traffic information without dark patterns or asking for an account like Waze or Maps do.
For the web, I personally like https://osmapp.org
https://cartes.app I can also recommend.
Both projects have a similar goal, to offer a more useful UI around using an OSM based map.
OpenStreetMap is a database, not a map application. The map on the official openstreetmap website is more of a demo to show some of the data. There are many different map apps that use OpenStreetMap data though.