"And they are completely free for non-commercial use." I have seen both of their "community" or "maker" tiers get worse over time; the terms of those licenses becoming less permissive. I've been told by an Autodesk employee that it doesn't exist for Fusion360. "There is no free software here." I suggest against building anything that matters to you against those platforms.

As long as you don't need much, they are free. But, the good stuff is all pay to play.