I'm not sure what these are examples of. Is Android "open-source"? Is macOS? I tried to compile Android from source this year, and spent weeks reading about

I'm not sure what these are examples of. Is Android "open-source"? Is macOS? I tried to compile Android from source this year, and spent weeks reading about it, finding distributions and tools to help, downloading packages, verifying signatures, and eventually running an enormous build command. I was ultimately unsuccessful. No matter what I fixed, there was something else that didn't work. Everything had the classic open-source excuses: it's being fixed soon, that's the wrong branch, you need to upgrade your tools, the docs are out of date, ... Android today is not anything like Andy Rubin's "the definition of open" from 2010. As far as I can tell, it's basically SAAS for smartphones. A corporation gets the benefits of open-source, but users don't.