I often reference this comparison in this context: https://i.xkqr.org/gmapsvsosm.png
OSM in my experience is better at features (roads, hiking trails, and stuff like that), i.e. what's shown in that comparison screenshot.
Google Maps is better at place-metadata, such as opening hours; as well as user-contributed content like reviews and photos.
So I end up using both, depending on usecase.
[1]: https://wiki.openstreetmap.org/wiki/OpenStreetMap_Carto [2]: https://www.maptiler.com [3]: https:/osmapp.org