Something is on my mind recently about freena. I've been thinking that she's actually know a lot of stuff in teyvat, but the game didnt want us to think like that since they paint her as a moe, brat, and childish character in this game. You can argue that she's not an archon, but she have spent the last 500 years acting as one, surely she knows several stuff like geopolitical situation in teyvat, news about other nation, and bunch of /happening/ in there right? Not to mention that she can walk freelyin her nation unlike nahida that are being imprisoned during that same amount of time. The proof about this statement is that before we head into natlan, she told us about that nation in a more detailed sense compared to what neuvilette told us about natlan that are quite superficial (about that place being a nation of war and something with dragon); and I believed that furina have a private meeting with tsaritsa and see her face atleast once hence why there are snezh diplomat in fontaine.
Well, that's just my thought, I dont know if they actually have something more to be told about furina, something like story quest part 2 seems unlikely, but if they dont then I think that'll be a waste of character for her