Boolean and bad topology I am working on a scene with differents buildings, pierced with arch-shaped windows.
Given the number of windows, using the boolean modifier would allow me to do it quickly. But since once applied, it generates a bad topology, it becomes difficult to edit the mesh afterwards. 

Is there a way to use the Boolean modifier while preserving the topology? if not, do you have any tips to quickly model these windows without using it?
Go to sculpting remesh is on top or right bar depending on tool aligment. remember to use adaptation this one is useful where you have lot of flats check out quads too