What do the 53m paid mobile downloads entail? I know Lara Croft GO but it doesn't seem nearly that popular and the runner game is f2p. Is there anything else?
This is a very good question.
There's Tomb Raider and the Guardian of the Light - that was on Android and iOS (and Blackberry Playbook), but it released later on those platforms so probably didn't clock up too many sales. It sold poorly enough that the next game in that short sub-series (Temple of Osiris) didn't appear on mobile.
Lara Croft GO is somewhere in the 1M to 5M range on Android - probably it sold better on iOS but even a total of 20M seems like a stretch. It also hasn't appeared on Apple Arcade or Google Play Pass, so there's no subscriber downloads that might boost the total.
So unless Lara Croft GO really did do huge numbers on iOS (like, many tens of millions kind of huge) then the bulk of the number could easily come from the ancient pre-smartphone Java Tomb Raider games. Some of them potentially sold pretty well. At least a few of them would probably have been pre-installed by mobile OEMs so maybe those are counted as paid "downloads".