@stephen_l Why Revit is successful? because it has a user-friendly interface, Autodesk uses "Theory of Laziness" in all its products:
They're available everywhere, they're easy to learn and to use, and a lot of characteristics related to that theory and other strategies
FreeCAD is based on CATIA (which in some points is an advantage) and is not user-friendly for "architects" it's maybe normal for some engineers from PLM industry (which FreeCAD lost this area, this is why wants introduce itself as an architecture tool) but it's not for architects
Also, personally I don't see anything about AI, automation and control, "KNOWLEDGE MANAGEMENT", simulation, and many things in it
If some companies like Arup has started to use CATIA more than before, it's because they want "Knowledge-based" solutions that even Revit and generally Autodesk product don't have, and they want advanced simulations (based on Modelica), ...
If 95% just want 3d model a building, and just this, then yes, FreeCAD could be used IF people feel it's good to use