Single-family house approx. 160 sqm flat roof - Optimization / Planning

I would choose a different staircase. Then the floor plan can be revised and improved. What is included in the budget?

I wouldn't necessarily want the second bathroom to border the dining room and living room.
The technical room is effectively 7 sqm less due to the entrance corner and is very, very small. Also, the corner with the wardrobe is very strange anyway.
I would divide this area differently, putting the guest bathroom upstairs at the back.

From the dining table directly into the guest bathroom! Do you really want that?

Oh, and one more thing:
At first, I definitely wanted my utility room upstairs. My thought advantage: Washing the laundry where it accumulates.
What I didn’t consider at first: I will definitely iron downstairs in front of the TV, where there is more space, and for hanging the laundry I have to go out into the garden. That means I carry the laundry back downstairs anyway, sometimes while it’s still wet. That doesn’t make much sense anymore.
Just a thought.

The walk-in closet in the master bedroom is to be furnished with PAX, meaning 60 cm deep. Is a movement space of 80 cm then too small?