A very common problem than can be avoided in PVE/PVE Conflict is obelisks and point of interest blocking. The unbuildable boundary in obelisks needs to be increased because they are still being blocked by just building around it. Maybe change the shape of the boundaries to an irregular or difficult pattern to build around.
World chests and main roads are also being completely blocked off by massive structures. The solution to this doesn’t have to be making a huge chunk of land unbuildable but putting down spots of unbuildable terrain in key locations and entrances.