Thanks for the feedback!
Yeah as I explained in another comment I made the Spores Chamber a track to be consistent with other factions and the Law of Root. However in retrospect as you say there's no gameplay functionality from it and it has probably just caused unnecessary confusion. I think I will update future versions to just have the Spore Chamber be a pool of tokens.
I somehow completely missed that aspect about how there's no reason for that 2nd Evening step since you can't use Spores between turns! I can see now exactly how that happened - the early versions of the faction didn't have a cap on the number of Spores you could store in the Spore Chamber so I added the "discard down to 3" to prevent players hoarding too many between turns. But then I never removed it after adding the cap in the Spore Chamber. Good spot!