Basement floor plan - window positioning in new construction

If you change a window, the view of the entire house no longer matches. Always such minimal details?
Show us the plan of the bathroom. Not your sketches. Preferably the entire floor.

Is it an existing building?
Can you please upload a proper drawing with walls and windows dimensioned?
Preferably your own hand drawing if there isn’t an actual one.
If it is a new building, then please the whole floor plan,
and the downpipe planning is of course also important, if available or where it is supposed to lead to.
And before we get to page 3 right away without the most important information: for how many and whom is the bathroom intended? Is it the only one?
Why is there a special dimension of, believe it or not, 100cm at the bathtub??

The question has already been answered.

Why on earth a special size of a whopping 100cm for the tub??

The 1m for the tub results from an 80cm tub and the pre-wall installation behind it.

I am currently working on transferring the floor plan into a visualization. Dimensions are still missing; I need to provide those later. The exterior dimensions of the house are 10.63x9.37

It would be sensible if the sink were placed on the wall next to the bedroom. Then the light would come from the left onto the mirror.

It should contain a shower approximately 1.00m x 1.20m

In such a large bathroom of nearly 12 sqm, it should be possible to plan a decent depth for the shower niche, i.e. at least 140cm, also to avoid a door.
In contrast, 90cm in width would in my opinion be absolutely sufficient and is considered by me as an extremely comfortable size.
As is often the case in large bathrooms, unnecessary empty space arises in the middle.