Most of these piggyback on the OSM for the data tier, which $T companies work on. Afaict the discussion is more about compute on top - tile generation, interactive renderers, ... .
I asked the question because it's an interesting question. In our world flooded in misinformation and cheap data, there's often little accurate, high-quality data.
I'm not sure what answer you are looking for / what alternative you are suggesting?
OSM is the biggest community effort - NGO, volunteer, corporate, etc - to solve data quality in GIS. The participants do everything to improve quality from individuals walking around with GPS devices to companies launching low earth orbit satellites into space and self-driving cars in the ground with AI error detection.
There is a more corporate and afaict anti-google effort more recently by tomtom and google competitors (Microsoft, meta) called Overture, which seems to be attempting a more closed and big corporate governed fork & ecosystem replacement of OSM, even if they phrase it as complementary. Your questioning of OSM-as-misinformation seems interesting in the comparative context of alternatives like Google Maps, Apple Maps, and Overture.