As a mechanical engineer, I'm envious of polished open source tools that exist in other fields. For parametric modeling and engineering drawing of mechanical parts, the free software tools are not nearly as mature and user friendly as commercial equivalents. When creating engineering drawings and models for public use, I would much prefer to use free software such as FreeCAD, SolveSpace, and OpenSCAD, because I want designs to be modifiable by anyone.

Unfortunately, using these free tools feels like a throwback to a less developed era in desktop computer aided design. Commercial CAD software with no-cost hobbyist licenses are much more usable, but tie you into their licensing structure and cloud data system. There's no telling whether you'll be able to open your Fusion360 or Onshape projects 10 years from now.

I have a lot of hope that eventually free software will overtake commercial software in a lot of fields, and establish a regime where everyone has access to "professional grade" tools. Something like that exists in the information technology field, and it has unlocked a lot of human potential over the last few decades. Just imagine every school child having access to advanced, professional grade free software tools in every sort of field of human creativity.