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.

Is TomTom's basemap entirely OpenStreetMap? Or do they add their own proprietary layer of map data on top?

I tried the TomTom app (on iOS) recently but found it incredibly buggy, especially when connected to CarPlay. The speed indicator would often just show 1mph, the dark mode would work about 20% of the time, and searches would show results from other countries ahead of a place 4 miles up the road.