Learning more about the game through sidequests

[Wanzzo]

it's so comforting when we see people like us in the game!

I notice every dialogue from NPCs.

And a tip: when important NPCs (like the Scions) are near the quest giver, CLICK ON EACH OF THEM before getting the quest. This will be WONDERFUL at some point in the story!!

Glad you exist, sister!

Oh, and about your concern, I trully believe NPCs and some texts will help you along about some key parts of the lore. Just keep playing! All NPCs in this game are well designed! Just pay attention to everyone and cutscenes. Do the side quests. Some of them are based on lore (a few, but...). pay attention to mentioned places, events of the past, Eras (umbral and astral). They are well spread through quests and some NPCs comments.