I just realized that while the Level of Detail from afar is great for most buidlings, Megabuilding 12 is a weird exception. I'm playing on PC with the maximum LOD setting, and it looks visible worse from a distance than all the other big buildings at equal distance. For reference, I've included a screenshot and also another one of megabuilding 11 from the same spot (same distance), the difference is really noticible.