https://www.fairphone.com/en/2024/09/04/how-much-ram-does-your-smartphone-need/
Couldn’t find another decent link in that wasn’t written in Dutch, but you’ll find it at the bottom of the story.
Besides the storage and RAM, nothing else has changed.
Could be. Can’t find anything specific about that atm, but the Fairphone 1 was already highly repairable, even though it wasn’t necessarily modular. So yeah, the repairability thing was probably something they went with as a secondary goal.
I found this iFixit teardown of the Fairphone 1. Doesn’t seem to be too complicated to take appart, but then again, neither were a lot of other phones at the time.