Planning, floor plans approx. 190 sqm with request for feedback

At the latest, when the kids annoy you with loud music or PC gaming (because the gallery doesn't just let the noise go upstairs, it works just as well the other way around), you start thinking about alternatives. Airspace in the middle of the dining table... And above, a separate hallway with an intermediate door, then it would work.

A quick sketch as a variant for the upper floor.... What do you think? (Don't pay attention to windows or similar.... just the floor plan :-) )

Idea:
Parents' bedroom on the ground floor instead of the guest room. Children practically have the upper floor to themselves. A guest area will be set up in the basement.

As far as I understand, the children are still small (or not there yet?). In this respect, the master bedroom will have to be on the same level. I think this is more about fundamentals. What do I want, to realize my dream, with a gallery, open space, master bedroom and spa area... or do I make compromises (which everyone with a family does) and design a house that is reasonably livable for everyone. The floor plan of OD_Bawü is already better, but in my opinion the gallery on the upper floor is totally wasted space. In the end, there is just a laundry cabinet standing alone in the middle of a corridor. :(