Most lore bits are important, a lot is right under your nose until you find the room that makes it all click, some reinforce what you already know, some set you on new paths.

I can't say much else without spoiling, but... I'll just say the RNG is dynamic with or without your input, AND, there are a few rooms you'll need to fight the RNG to grab from the drafting pool.

to try and line things up your way more efficiently

and expecting you to stumble on rooms that reminds you of a puzzle you were completing three days ago: following one lead is bound to be frustrating, and people have complained the midgame (when there IS only one lead to follow) is the slowest, but by then you'll know the workings of the room enough

Well... without spoiling anything: the game REALLY hates linear progression, and encourages journaling and throwing clues in there because of how it's built on an RNG basis, and the feeling it's not giving you a certain room is completely valid because the game prefers setting you on multiple paths