What I mean is there's clearly a want or need for open-source CAD packages; and it feels like it's holding the "makersphere" back. A lot of people still use Fusion360, because it works. The open-source options are OpenSCAD and FreeCAD. I doubt the amount of work and investment needed to replace OpenCASCADE would happen; at the same time OpenSCAD's engine clearly has some major limitations. So it's no wonder OpenCASCADE is used.

I want to like FreeCAD, but it's an insanely complicated piece of software. That leaves OpenSCAD for now. With ZenCAD, maybe rewriting stuff FreeCAD already does is worth it, but you have to worry about a small number of maintainers and adoption.