Division of fixed glazing into sections

It is about my planned extension with almost exclusively fixed glazing (only the door towards the terrace can be opened).



Now I am completely unsure into how many parts I should divide the panes.
The window towards the terrace (east) is already fixed and it is mainly about the large south window and the "smaller" north window, whose total size and position are also already fixed.

South window:
Here it must be divided at least once.
So there are the following options:
5335mm total
2 parts -> 2667mm
3 parts -> 1778mm

North window:
Here a single part would also be possible.
So there are the following options:
2750mm total
1 part -> 2750mm
2 parts -> 1375mm

Large windows would of course be nicer (I guess...) and you would have some symmetry here, since all parts would be about the same size (267cm and 275cm).
Now I am just thinking about how likely glass breakage could be and that with large elements the replacement costs would be higher.
(A glass breakage insurance is quite expensive compared to the other insurances)

How would you decide here?

North view:

South view:

Now I am completely unsure how many parts I should divide the panes into.

Just ask the executing company what is possible. If you want to do it yourself, ask the glazier and present your project to him, or a window manufacturer.

What is supposed to cause glass breakage there?

Ask the executing company what’s possible. If you want to do it yourself, ask the glazier and present your project to him, or a window manufacturer.

What’s possible has already been agreed upon long ago. All of this is possible without much additional cost. I’m more concerned about how it behaves in case of a potential defect and how likely that is.

What is supposed to cause glass breakage there?

That is exactly the question. There is no dark sofa etc. against it from the inside, only larger plants.

I am currently wondering, how are the windows supposed to be cleaned through the railing? How is the shading solved?