It's a shame that Autodesk is cutting back on features for free personal use, especially the removal of STEP export (an open interchange format) and multi-axis CAM (used to convert 3D models into instructions for milling machines & lathes).

But - $495 for a CAD program as fully featured as Fusion 360 is a steal compared to $$$$ Solidworks & competitors. Plus it's cross platform which you don't typically find in the world of CAD.

Is FreeCAD a viable alternative? Not even close.

Should there be a usable FOSS CAD program? hell yes!

Unfortunately the FOSS foundations required to build a real CAD program haven't materialized in cohesive way. There are so many pieces, with many requiring teams of PhDs to produce: CAD kernels, constraint solvers, file format interop, sketching tools, assembly support (mating), simulation, etc... There are some advanced projects out there like the OPENCASCADE kernel, but Parasolid is more reliable and has real support through Siemens.