Is it really repairable? I mean if a chip in the core module fails, can you buy just the chip and replace it or you need a whole new module? If the latter, then what makes it different from any other phone?
The typical pieces which are exposed to the outside and can suffer damages.
See:
https://www.fairphone.com/en/2020/12/18/living-wage/
https://www.fairphone.com/en/category/good-working-condition...
So no, the chip in the core module would require a new core module - which often means buying a new phone (though I replaced it with that of a friend's when my FP 2 started having some issues). The parts most likely to break, though - screen, battery, USB port - are easily replaceable.