It does feel that a lot of buildings were designed with very little effort and are just a random arrangements of components and some patch work to make it passa

It does feel that a lot of buildings were designed with very little effort and are just a random arrangements of components and some patch work to make it passable. There are so many weird solutions, especially in newer buildings. Far too few entrances and exits. Doors opening the wrong way, or extra doors or short stairs you have to pass through. Random looking window sizes and placements. Or no windows. Or no windows to the side with the best views, instead all facing a close by building. Having to walk around a lot for basic oft repeating functions - ie stairs or elevators that feel like they are installed backwards. I did some hobbbyist 3d shooter level design in the past, and played a lot of custom maps. You could see the high level "flow" and vision of master designers when playing their maps or looking at them in the editor. Less experienced mappers might have some good individual ideas but the whole would usually not be so coherent.