About Game 3D building

Proper architecture can be a real pain.

But well… its work right?

Use Blender for most things.
Because you need to create proper UVs, proper Lightmaps, etc.

Use Houdini when possible - so numerical driven stuff usually.

Use Fusion360 to get the best possible simple model to then refine/add to in Blender (or houdini?).
It’s just a lot easier to use Fusion360 to make something like a house, or a building.
Mostly because it is meant to create fabrication/production things, so cutting holes, adding fillets, generating a moulding that aligns with the whole wall of a room, etc. Become extremely easy tasks when compared to say Blender.

Now when you do stuff like this, then Blender is king.