Comment by caisley

You're right that most professional designers historically haven't cared about open source tooling. But this is starting to change, largely because of the recent existence of open PDKs and the creation of better open tools like OpenROAD. I am a PhD student working in chip design, and about 90% of my work is done using open tools. You can see an image of one chip here, for example.

https://github.com/kcaisley/frida