I’m still learning Rust coming from Python and R and honestly point 2 and 3 are not even that bad. Sure I have been bashing my head against some corners, and the lack of OOP was somewhat unexpected, but imho the language really helps you think about what you are doing.

I seriously doubt changing language would impact a senior that much…

I agree but with a caveat: openscad still requires people to understand code. It is still. A whole new skillset that not everyone is going to want to learn.

I agree on freecad! Version 1.0 made it a lot more usable. I moved away from F360 some time ago and now that freecad is more useful it has comfortably replaced 90% of my workflow. It is still a bit clunky, but can get you there.