Yes, when you study assembly as a general programming language, the same way you learn another language. But again, for people who are interested in reverse eng

Yes, when you study assembly as a general programming language, the same way you learn another language. But again, for people who are interested in reverse engineering, the focus is different, and you'll find that if you start looking for assembly tutorials online (and also the books on modern assembly, e.g. I have "Modern x64 assembly language programming" and "Windows 64 bit assembly language programming quick start" here next to me and those fit that description), a lot of those are for aspiring reverse engineers. The (numerical) optimization angle is a lot harder to find, agner.org probably being the exception. E.g., knowing what _main is and how to call an OS primitive is a lot more important when reverse engineering than knowing about context switching and simd. I was just trying to say, that's where the focus on a specific OS comes from, and a focus on things that people who do manual numerical optimization would consider irrelevant or at best tangential to what they consider 'important' in assembly.