Bathroom planning - Not optimal or is it? :)

Hello dear community,
we are building a townhouse and would like to install a T-piece in our bathroom. Attached is a photo of our desired bathroom. Unfortunately, the 90cm rough construction measurement seems very small to me in the planning. Maybe someone of you has an alternative or maybe also about 90cm. I am aware that our planning is not the dimensions of the desired measurements :P

I am aware that our planning does not correspond to the desired measurements

What are the measurements?

So I don't have the original dimensions from the example. But purely visually, our example is already much larger than what is possible. Dimensions of the current planning are:

That's all fine.
Replace a T with an L.
Place the Toi rotated in the lower left corner of the plan. With 90 cm width for the Toi, a total of 3.70 remains for the rest of the shower.
70 cm for the passage into the shower is sufficient. The rest is enough for a great walk-in shower that is close to your desired design.
Enjoy it

Unfortunately, the 90cm rough construction dimension seems very small to me in the planning.

Which 90 cm at which location? I don't see the measurement anywhere.

Well, spontaneously I would say your T is the wrong way around in the bathroom. Look how much space you have when you turn it:


The big question is, how flexible are the windows?