Just look, for instance, at FPGAs: almost all the tooling is proprietary, very expensive, and very buggy too. Or look at PCB design: Altium seems to be the standard here still, despite Kicad having made huge advances and by most accounts being as good or even better. It took decades (Kicad started in 1992) for the FOSS alternatives here to really catch on much, and only really because PCBs became cheap enough for hobbyists to design and construct their own (mainly because of Chinese PCB companies), and because CERN contributed some resources.
I'm not sure what the deal is with engineers hating collaboratively-developed and freely-available software, but it's a real thing in my experience. It's like someone told them that FOSS is "socialism" and they just reflexively dismiss or hate it.
Probably because if you complain about bugs or problems in open-source software, a legion of trolls comes to tell you "erm, it's open source, you can just implement it yourself" no matter how skilled the user is at programming.
Like, for example, the lead dev of Inkscape, who used to (not sure if he still does) go around on twitter looking up complaints about how slow Inkscape is on macOS and then complain about them being entitled.
No wonder they don't want to use it, then, if it's considered rude to even expect the software to work.