Most language users will follow the "spirit" of the language - e.g. Bill is against package managers, people who use his language mostly agree with his ideas, and there's not a huge standard Odin package manager.

I rather appreciate that C and C++ don't have a default package manager that took over - yes, integrating libraries is a bit more difficult, but we also have a lot of small, self-contained libraries that just "do the thing" without pulling in a library that does colored text for logging, which pulls in tokio, which pulls in mio, which pulls in wasi, which pulls in serde, which is insane.

C and C++ do have package managers. It's just that these languages evolved for OS implementation and also that these package managers are old and stable so they have support for a lot of languages, so that you probably know them as OS package managers.