There’s Mapillary (acquired by meta but imagery is free to use in most cases) and KartaView (Grab).
Both are crowdsourced platforms.
Both are crowdsourced platforms.
Still, since they're crowd-sourced from phone data, they only have a single view (no 360 in most places), inaccurate (or at least not reliably accurate) camera calibration, no accurate localization, and possibly most importantly, no LiDAR data.
That's a lot of things that make it much harder to deal with and limit the potential compared to street view.