Niantic announces “Large Geospatial Model” trained on Pokémon Go player data

I wonder how this can be combined with satellite data, if at all?

I don’t see why not. Photos are often combined with satellite data for photogrammetry purposes, even on large scale - see the recent Microsoft Flight Simulator (in a couple days, when it actually works)

It's usually aerial data, especially oblique aerial. Bing Maps is still pretty unique in offering them undistorted and not draped over some always degraded mesh.