I think immediately putting a bunch of lore in the Library level would be a mistake. One thing that's interesting to me about Underrail is how generic is seems at the start, and how the depth is only found if you dig in over the course of the playthrough. Adding a bunch of lore dumps right at the start would add a big cognitive overload for new players, when they already have quite a difficult game to learn.
I would like, however, a library you could build over the playthrough. "Oh no, the earthquake destroyed our knowledge database and the backup, we've lost decades of history!" And Vera could request that you help her build back the library.
It could either be a new collectible, or it could simply be a database that contains extra text based on oddity sets that you complete. There's currently not much you gain by completing an oddity set, you get all their info on the first one you find, so it could work as an incentive to savescum the Train Log from Gauntlet find all the pieces that you might be missing.