or is the living room really that dark?
I rather suspect that it’s due to his "terrace overhang". That’s why we "deselected" it and added the terrace separately at the back.
My wife was also concerned that it might become "too dark". Now we have good lighting and it’s bright, but also quite warm in the living room.
The only option is to activate the shading during the day. Then the temperatures are manageable in the evening as well.