Then I'll try to say something about it somehow...
Briefly on the topic of sliding doors: I think they look nice, they also have certain advantages, but with our construction company they cost about three times as much as hinged doors, and it's not worth it to me.
Maybe the fundamental problem is that people always assume custom-designed houses here, where you can use any materials the market offers. Maybe I'm simply in the wrong place here as someone who wants to build with a prefab house manufacturer. Maybe.
Anyway, in our case, there is a window catalog from which we can choose, but we are also limited to it. Windows in "160.5 cm" sound great, but simply don't exist with that manufacturer.
Eaves-side windows in children's rooms would significantly limit our furniture placement options again. So, in our amateurish foolishness, we thought we'd install very wide floor-to-ceiling windows instead of an additional light strip (which was also recommended by the architect).
In general, many things are a financial matter, and I almost have the impression that I have to be ashamed in this forum to say that an extra 10,000 euros for sliding doors and windows are simply not possible for us.
To be honest: Right now I'm pretty frustrated.