I can export my file to plenty of other formats. I've used .3mf to move it to prusa slicer, for example.
B-rep solid export (STEP) is also very much a thing, you can exchange solid models between Fusion, SOLIDworks, FreeCAD, etc. (and import them from PCB design software and so on)
But this is just baked geometry of course. It's not parametric. There is no standard for parametric models, there is no way to exchange them between different programs.
Vector drawing software faces a similar problem. There's some agreed primitives but often you just get bezier soup.
This is apologism.
If their parametric export format was documented readable ascii text, there would be an entire ecosystem of 3rd party tool taking care of connecting it to other things.
Even better, if there was a push from them to design a standard for this, this would benefit the entire CAD/CAM/manufacturing industry.
But AutoDesk's mindset is the walled garden / captive audience business model.
The fact that creating open standards around their file format would actually benefit their business is simply something that's completely impossible to understand at the corporate culture level.