Do you have some references for the pick and place and other reconfiguration things you mentioned. I've been out of this space for a while but last I checked these were still incredibly challenging things to get right.
If you like visual media, the "Strange Parts" YouTube channel is an interesting source for glimpses into modern, mostly Chinese factories: https://www.youtube.com/@StrangeParts/
Since you're asking about pick and place specifically, https://www.opulo.io/ is an interesting example of how far/cheap you can push such machinery (and the design in and of itself is interesting from a manufacturing point of view). Not all that relevant from a mass-production point of view, though.