@redstructure Not entirely. My office works in ArchiCAD (a BIM software similar to Revit) that utilizes IFC. We use these IFC models to communicate with contractors and consultants that don’t run our software. This file format is crucial for this type of collaboration/coordination. For Unreal Engine, it helps to go from ArchiCAD to UE4 in one step (through IFC) rather than through 3ds Max since it’s less steps and allows us to not have to purchase additional programs.
Edit:
It depends on workflow and availability of programs. Since this office is entirely Mac based (no PCs) we can’t use a lot of modeling software like 3ds Max