I also perceive the hallway as a long part with a lot of space, and I believe that the straight staircase brings some consequences; especially in the [OG]. At first, we also wanted a straight staircase, but now we are glad that we moved away from that idea. It is usually not the shape but the craftsmanship that makes a staircase more or less beautiful. This is especially relevant now because we decided on our staircase today at noon and placed the order.
Between the dining and living area, it seems to me like an empty space that is difficult to use. The dining table/kitchen feels a bit cramped.
The bedroom in the [OG] has THREE doors, which would be too busy for me.