So, about group chats

So, I'm getting back into AI stuff after many years away. Last time I was messing around we had only like 2k context (and I'm pretty sure that it was only that high because I was paying for a subscription), and no fancy character cards, instead throwing our characters all willy nilly into world info entries in formats appropriately named things like "caveman." I haven't really messed around since AI Dungeon decided that "horse" was such a naughty word that it needed to be banned and, now, in this brave new world of being able to run insanely more intelligent models on my own pc with context levels unimaginably huge that I find myself, I have a few questions.

First, if I make a group chat, the information from every character in the chat will eat up context with every submission, not just the character whose turn it is, right? That includes if they're muted, correct?

Second, I understand that the world info is across all chats, and there's lore books that're basically world infos tied to particular characters. So, if I wanted to create a group chat that consists of me pulling my horse girl adventure group from my KoboldAI Lite story mode, I could have a main scenario card that lists all the girls in the group, and any of the characters I bring into the chat to be the active characters could then know the basics that Brittany is the snobby rich girl whose horse is a white Arabian named Bolt, while Emily is the shy girl with the chestnut mare, right?

Then, using the separate character lore books, I could put in their feelings about the different girls, so that, when newcomer Amanda is asking Emily about Brittany, Emily could have an entry about how she was so mean to her and that she's bad news. But the other girls who weren't present (so didn't get that story added to their lore) wouldn't have that entry, instead their own entries with their own feelings about her added. But I see that it says only one entry at a time in the world info triggers. Would that mean that the entries for the lore books from Emily AND Tiffany would trigger when someone mentions Brittany or just one of them? And would the recursive triggers fire if they would be triggered by something that was listed in a different lore book?

Sorry if these are common questions, I've been reading all I can find about this stuff, and just want to understand if I've grasped it right, since just getting this all set up and figuring out about models and whatnot was enough of a brain drain. It would be nice to move from the primitive options offered by KoboldAI Lite, not to mention how ST hits my nostalgia of the AOL RP chatrooms of the 90s that made me fall in love with the internet in the first place.