HOW MUCH LORE SHOULD YOU FIND IN A UNIVERSITY LIBRARY ?

you can do whatever you want. it's pretty inconsequential to have an optional lore dump area. Morrowind has tons of libraries in the game that are just books for days.

though I feel like you're falling for the trap of "every door needs to be openable because it's a door" and not just adding function when actually needed. you don't have to put lore in if you don't like making lore which should take precedence over realism or whatever.

As someone who worked at their university's library... I'd skip the books and focus more on the people you'd find hanging out there (university libraries tend to be VERY busy places). You'll get more of a lived-in feel if you're running into frazzled students cramming for exams or pompous professors doing research.

Going that route also has the advantage that you don't have to lore dump to convey information to the player - just introduce an NPC as an expert on an appropriate topic, and let the player ask them questions about the lore after it comes up in the story and they have a reason to care.

author=Dyluck
You specified that this library is going to be EARLY in the game. If so, then too much lore definitely runs an extremely high risk of being ignored or just being completely meaningless to the player. They probably won't care or find the lore as interesting as you the writer.

They are much more likely to enjoy or care about reading lore if it's much later into the game and lot of interesting things have already happened. Then they might actually be interested in finding out more details about various things in the world, once they have more context.

I actually think that putting a thing like this early in the game is an important way of teaching the player that reading a bunch of random books in the game is optional. Like in Pillars of Eternity I remember there being a bunch of random kickstarter-stories everywhere and a lot of them were frontloaded in the first area and after reading through like five or six I quickly realized that these were just random fluff that wasn't actually important so it taught me that it was okay to skip.

A library filled to the brim with long text files is a tutorial showing the player that there's plenty of stuff in the game and that you don't have to interact with all of it just because it glows when you mouseover it.

You could make the books a collectible containing a sentence of lore each and an empty library accepting donations a sidequest.

I do not believe that the creator always has the most investment in something like library books added into the game. I think it is usually the opposite for any accomplished writer. The core of 90% of stories is to keep leading the reader on, making them think that there is something interesting to find so they can be impressed even if they do not finish. Usually, the ending sucks if it is a TV Show, game or book. Something like a library is usually just introduced to make a game look polished or to trick the player into thinking that the director/writer knows everything about the world and can write a competent story.

In two of the games I want to make, everything is based around a hub area (they might even be the same place at different time periods). In one of them, which focuses on the hub as the main area for growth and learning, and which is inspired by Persona, you can make time in your schedule for the library, but you can only read a passage from one book. This passage can be very long because it becomes a privilege and you are also prevented from reading anything else that day so they are not stuck trying to read whatever they can at an unnatural pace.