If you can get on board with the approach from and are willing to take on the effort of rerouting water pipes for the kitchen (under the basement ceiling to the new position), then I would plan it like this:
The room at the bottom left of the plan would be about exactly 16 sqm.
Wardrobe corner positioned in front of the bedroom, but with more space around the bed.
In the approximately 145 cm wide hallway, 40 cm deep cabinets for bed linen/towels could still fit.
Above, next to the basement stairs, you could create a proper wardrobe corner for truly all jackets in the 200 cm cabinet, all shoes in the 200 cm cabinet that is only 40 cm deep. Then a small bench for putting on shoes and about 100 cm left as an open wardrobe section with hooks for guests' jackets, etc.
Kitchen then as an L-shape, plus a small work block for baking, buffet preparation, etc. towards the table with open shelves, e.g. toaster, reading material, charging stations for cell phones, telephone, etc.
Casually spread two cozy armchairs and you have a well-usable kitchen/dining room.
Passage to the living area as planned. No windows moved ;)
I made the WC a bit longer so that the pre-wall for the washbasins in the main bathroom moves slightly more towards the bottom of the plan. The WC gap in the main bath was only about 70 cm, far too narrow.