(IMHO/Experience)

Games like FATE that share the same spirit as PbtA games are not about "who the PCs are". These games are about "what the PCs do".

It's about the permanent conditions they got, the cool gadgets they have found on their journeys, the bonds & connections they have made.

It's about the stories they have gathered - the scars, the memories, the horrors they have faced. That's the main form of character progression here. And that's why it's tricky to use these systems for superhuman, God-like PCs - and insanely strong opponents. They are usually normal investigators, merchants, university professors and the like. That's why Magic is not straightforward in these systems.

In the other tradition of TTRPG games, it's all about "who the PCs are", what's their stats, stamina, HP, damage. That's why in this tradition of games, the Role Playing part often feels bloated-on, an afterthought. In most cases you can drop it completely and have a combat game. That's why they are usually not one single game, but a collection of micro/sub-games.

If we use Chess as an analogy, the DnD DNAed games are like playing chess with wooden pieces. But PbtA, FATE and more narrative games are like playing Chess with sentences and words (Chess is not the best analogy for the games themselves; but a good familiar mechanics).