Why isn't it a good fit? The design prioritises readability of code that uses generics vs writing generic code (which is in line with the overall language philosophy). It also does it in a way that doesn't impact compilation speed or add too much complexity, which is also in line with the language philosophy.

If you don't like the fact that not all of standard library has been refactored to support the new language features -- I think it'll come over time. Once these features land into the standard library they can't be taken away, so the language authors take their time to make sure it's designed well.

I don't see anything going obviously wrong here.

I thought the status of Go v2 was that the devs weren't saying it will never happen, but also were not working on it. There was some momentum that seemed to sputter out once generics were added.

"when should we expect the Go 2 specification that breaks old Go 1 programs?

The answer is never. Go 2, in the sense of breaking with the past and no longer compiling old programs, is never going to happen. Go 2 in the sense of being the major revision of Go 1 we started toward in 2017 has already happened."[1]

Granted, this post was more about if there will someday be a Go that will break backward compatibility. But it sort of answers where Go 2 is as a side effect.

[1] https://golang.google.cn/blog/compat

Why is it becoming obvious?