Bitrate i.e. amount of data per second is the same, there are more changes to track at 60fps but each of these changes is smaller so it should pretty much even out.
As mentioned Li-Ion Polymer is just a subset of Li-Ion.
There are tons of different chemistries for both that are never mentioned in detail (other than LiFe/LiFePo4 but those are not used in consumer drones), so to the end user it literally...