I am currently building a house (semi-detached). I am currently asking myself how I should design the windows. You can see my ideas in the picture. The only difference is the windows on the 1st floor.
Which would you prefer? L1 or L2? R1 or R2? Separate windows or single pane windows on the front?
L: house on the back side
R: house in the front
The fixed elements on the bottom are silly to clean.
But that applies equally to the glazed version of the French balcony.
With floor-to-ceiling windows, I would always make the bottom fixed. The advantage is that you can put something on the floor right in front of the window in the children's room and still have the window open...
Our daughter likes to sit on her soft cushion in front of the floor-to-ceiling window and look outside. That doesn't work with regular windows.
But getting back to the question: although I am a fan of lots of windows, I think there are a bit too many in the exterior views. It would be optically calmer if the exterior windows on the top floor were designed like regular windows. Then the view of the upper floors would be closer to the view of the first floor.
The disadvantage of fixed glazing at the bottom might be that you have to open the roller shutters further to let air in. It also lets in more light. With doors to the floor, there is enough clearance from the roller shutters for better ventilation. Especially in the summer, you may want to sleep with the window open, but not open the roller shutters halfway.
I would wonder if floor-to-ceiling windows are needed there at all? Bathrooms and children's rooms can look like they are on display.
Otherwise, the fixed element below should be considered how to clean it.
Fixed elements on the bottom are silly to clean. I speak from my own experience. Either way, I wouldn't choose those floor-to-ceiling windows again. You can see just fine from the outside. Now we have foil on the bottom. Not chic, but still better than before.