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.
It is an interesting question. I've worked with a fair bit of geo-data, and found pretty much any sufficiently large geo-dataset, regardless of whether it's crowd-sourced or purchased from a commercial provider tends to have a fair number data accuracy issues.
If you spend any time on either OpenStreetMap or Google Maps in the rural US, and you are very likely to find both missing streets, and streets that have been completely hallucinated out of nothing -- mostly because they were both originally sourced from the US CENSUS TIGER data -- a US govt data set that tends to be full of errors.
OpenStreetMap contributors of often improve these issues over time (though it largely depends on if the area you care about has some sufficiently dedicated mapper).