I haven't followed the last 10 pages - I don't find the plan's upper side regarding the window desirable, I would find it petty.
I'm at a loss. Do you mean the windows in the living area facing south? I had to google "piefig." What do you find petty or bourgeois about it? I'm actually surprised and really curious now.
BD/DD realistic? And again about the central unit: what is the worst-case scenario in case of planning errors? So why should there be difficulties with the installation in the floor? How likely is that and how bad would it look then?
That looks to me more like luck than sense for the cow Elsa: the BD at the bathroom door will probably be 60/20 or longer (aligned S-N).
Petty, narrow-minded in this case. The 1-meter doors (in the symmetry) do not match the floor plan. What do they want? Just symmetry? They provide nothing outside or inside. They are not suitable at all.