If the house is very well insulated, think carefully about the panoramic fireplace. A lot of glass also always means the release of large amounts of heat at once. This causes a room to overheat very quickly. A masonry heater might be better in that case.
Our house is being built "only" according to the Energy Saving Ordinance, no KFW.
I have an appointment with the stove builder tomorrow, let's see what he considers feasible.
Currently, in our house (built 2006 without controlled residential ventilation), when we had to have a stove connected, I had to install a window contact for the range hood because of the exhaust air, and we have a Weibel wall box that only opens when the range hood is turned on.
For the new house, we also won't have any exhaust air anymore. We'll invest the costs for that (drilling + corresponding wall box) into a good recirculation hood.
Right now, I'm having our kitchen designed by an independent planner (for a fee), and he also convinced me that there are very good recirculation hoods and that I should get rid of the thought that "odors only go away with exhaust air."
Today, I am supposed to receive the first drafts + appliance suggestions. I'll get back to you then with his recommendation.