Floor plan optimization - Planning of a semi-detached house approximately 200m² living area

How does the sliding door that is supposed to run inside the wall work? Where does it slide to and how wide is it? I find the living room terribly planned, the open space has large hallways and in the middle little usable space. 8 dining seats.....and where do these 8 people then sit in the living room? Bathroom upstairs as well. On every side something is hanging on the wall, the toilet directly opposite the door, with a lot of empty space in between again. In the upstairs bedroom you walk straight into the side wall of the wardrobe, which is probably not very big. The bed is right next to the wall?? No way, right? A desk in the bedroom is not out of place for reasons of taste, it is simply unhealthy. The same applies here: Without actual furniture dimensions throughout the whole house, a floor plan is not really helpful. The children's room is way too big and here too, in my opinion, at least 60cm behind the door opening for possible rearranging later is missing. In the ground floor hallway there is plenty of space, in the upstairs hallway you can hardly turn around. In my opinion the proportions of the rooms and spaces do not fit together. I would really recommend pencil and graph paper to you........