Version 10-12 is 10-ish years ago. They switched to yearmonth (e.g. 2604) release names long ago.

Let's just say things changed since then.

There is also a difference between intuitive and familiar.

I learned to CAD on Fusion 360 with no formal education and it just worked. I can use FreeCAD sufficiently well to be productive (it really has become better over the years). I tried OnShape and just started working. I like using OpenSCAD and CadQuery...

... but I still struggle to get spline extrusions to work in NX because you just have to know which buttons to press in which order.