Im always rooting for FOSS alternatives (like inkscape just got a shape builer tool in 1.3, and now i can finally abandon Illustrator for good!)
I wish freeCAD was usable professinally, but for now it's too convoluted and prone to crashing; and so ill take anything for a testrun that just supports linux natively.
Mechanical CAD is very niche and simultaneously complex to execute... Its just not ideal for hobby development
I'm a bit more pessimistic about that percentage.. maybe 90% of people with the technical ability and inclination to micromanage their devices. But I'd wager the majority of users just want a remote control mood light and do not care that it's using the WiFi