oh trust me, there is. sets a forest to be chopped down in an attempt to get hearthlings to stop sitting around the fireplace and work for once lol
aside from the current “idle” behaviour that’s actually just bugs/inefficiency, there almost certainly will be an idle period, but it’ll likely have to be mandated by you. in other words, your hearthlings will need rest or their happiness will go down and the like, so you will have to give them breaks.