Hm, well, I mean that the radiant cold _inside_ a house through a larger window cannot be compared to the climate in a conservatory. The feeling is different when sitting in a heated living space than in the conservatory, where, ideally, warmth\cold comes from three sides. I just felt our terrace windows on the south and west sides on the inside during bright sunshine and freezing weather. The glass on the south side is warmer than the exterior wall; the west window, which is still in the shade, is noticeably colder than the wall.
My parents have a house where both gables are glazed... but behind them are very large rooms, so you don’t stay immediately behind them.
Anyway: I don’t find roller shutters attractive, and the blinds will be expensive. I agree with the comment that the house should be planned accordingly. Such a panoramic window would not be a nice-to-have in a standard house (Viebrockhaus or Heinz von Heiden), but should be conveyed by the orientation as well as the eaves being appropriately designed. The room behind it would probably rather be an open “stairwell” or gallery, where rooms behind would mainly benefit from the incoming light only through balustrades or skylights because they are oppositely located on the north side. Of course, such a window also includes the view: if later you only outfit your garden with lawn (what is a garden?) and mostly just look onto settlement houses or a new housing development, it is rather counterproductive.
The factor of statics would annoy me the least. That requires paying a decent amount more.
I would always build a normally tall fixed window with a width of 3 or 4 meters to have an amazing view. Even in the north, where statics is also important, everything else is manageable.
I wouldn’t leave out cleaning either, because a beautiful window facade only looks good if it is clean. That can get pretty annoying quite quickly.