First sentence of the wiki page [1]:
> Swift is a high-level general-purpose, multi-paradigm, compiled programming language created by Chris Lattner in 2010 for Apple Inc. and maintained by the open-source community.
As the article repeats, it is not Apple specific.
[1] https://en.wikipedia.org/wiki/Swift_(programming_language)
> The community was very against function builders.
Scanning the multiple review threads, that doesn't appear to be the case. According to the acceptance post, the community was overall positive about the feature but expressed concerns over the attribute naming, which was renamed in response.
I know Swift is technically not Apple specific, but it says right there in your quote that it was created for Apple and Apple is the giant weight behind it.
I doubt Apple is in danger of dropping Swift, but if they did it would create a devastating vacuum in the Swift ecosystem.
It's about as maintained by the "open source community" as Android is lol
Swift being maintained by the open source community is an illusion. The community was very against function builders. Apple went ahead and did it anyway because they needed it for SwiftUI. The open source community just provides discussion, and Apple gets its way either way.