[pjmlp]

Yes, unless you only care about doing CLI applications using the standard library, or having something to be Webserver endpoint.

Naturally most packages on the ecosystem assume libraries that don't exist outside Apple ecosystem.

Just like in the early .NET Core days, there were tons (and still are, hence businesses stuck in .NET Framework) that were actually wrappers to DLLs and COM based libraries.

Even Swift website acknowledges that the best use cases are command line and server stuff, the sweet spot is for server side applications for developers on Apple ecosystem, after all macOS servers are no longer something Apple sells.