Thank you very much for your assessments! I will definitely address the window arrangements/dimensions and the topic of the dressing room again! The kitchen planning has not progressed yet, but I will keep Yvonne's hint in mind, it could really seem like a dead end in this form.... The position of the fireplace is still variable, it could certainly also be placed against the wall, here I have to weigh the pros and cons. The entire utility room has meanwhile become more of a passageway, but since I accommodate the transition to the garage and the cellar staircase here and "tidy up," I accept this; I didn’t want the cellar staircase to be in the middle of the apartment, but "hidden."
The garage as a boundary garage in this form (with the roof shape and windows) is permissible, as the setback areas to the neighboring property are regulated.
Thanks again & best regards!