[skissane]

Siemens NX used to be available on macOS, up until about 5-6 years ago. However, Siemens found few customers were adopting it, so they discontinued it.

Apparently, one of the reasons for its lack of adoption, was lack of a native macOS GUI – instead it ran under X11. https://community.sw.siemens.com/s/question/0D54O000061xMQgS...

If Apple really cared about it, I'm sure they could have worked out some deal with Siemens to keep the macOS edition viable, even improve its UI to be native and more usable. It would require them to move away from viewing themselves just as a customer, into more seeing it as an investment into their own platform (making it viable for more use cases.) Sad to say, Apple doesn't seem to think like that much (or maybe some people there do, but not the people whose opinions really count)