During WWDC 2020, we saw hints that Apple is taking a similar approach. Specifically, ARKit’s new “Location Anchor” feature appears to be enhanced by—and maybe even directly dependent upon—Apple Maps’s Look Around imagery for localization:

ARKit downloads batches of imagery that depict the physical environment in that area and assist the session with determining the user’s precise geographic location

This localization imagery captures the view mostly from public streets and routes accessible by car

geo tracking doesn’t support areas within the city that are gated or accessible only to pedestrians, as ARKit lacks localization imagery there

geo tracking only supports areas only from which Apple has collected localization imagery in advance