By hub, do you mean like a "camp"?
Viewing post in Progress Report - 4-11-2023 comments
The camp you see in the demo version is just a temporary rest screen similar to darkest dungeon's camping.
We do have dialogues/unique scenes made for that but they weren't implemented in the demo yet.
And you do recover exhaustion/lust in the demo already.
As for managing the party/items, you can do that by accessing the character menu.