I think it’s still worth pointing out that one language includes it as a feature and the other requires additional tooling.

Which can also be said about Rust and anyhow/thiserror. You won't see any decent project that don't use them, the language requires additional tooling for errors as well.

Not exactly:

- https://github.com/kubernetes/kubernetes/pull/132799/files

- https://github.com/kubernetes/kubernetes/pull/80700/files

- https://github.com/kubernetes/kubernetes/pull/27793/files

- https://github.com/kubernetes/kubernetes/pull/110879/files

- https://github.com/moby/moby/pull/10321/files

- https://github.com/cockroachdb/cockroach/pull/74743/files

Do we have linters that catch these?