From discussions I've seen online, a lot can fail on satellites so there is a bias to do as little as possible on them. There does appear to be plenty of bandwidth to transmit back to ground stations.
The real win will be satellite-to-satellite transmissions where any data collected by the constellation is passed to the satellite that'll next fly over a ground station. This will lower the time from capture to analysis considerably. The fresher the data, the more valuable it is.
To anyone considering going to all this effort, consider doing this work on OpenStreetMap. 50K contributors make OSM a bit better every month but a good map is never finished. https://rapideditor.org/edit
Um, RapID is the big tech's spin on OSM editing. Clicking stuff to import from AI or government data is hardly the essence of OSM, a complement at best.
Use iD or JOSM on desktop, StreetComplete/Every Door/Go Map!!/Vespucci on the phone. Survey POIs in your local area, with your own feet. Big tech can't do that ;)