Freecad is limited by Open Cascade which is the modeling kernel at the heart of the program. I started with Open Cascade then moved on to Granite from PTC (not open source) and the latter is just so much easier, faster, and stable. I’ve heard Parasolid and whatever it is that Autodesk uses these days are both excellent as well.
It would be nice for there to be a more modern open source modeling library.
U only need to get a prototype working, post on show HN and it will attracted others who see point in it. It would be nice to have a CAD which is user friendly. I don't like fusion either but it's necessary evil.