So, I’m re-reading the original post here - sorry for my vague reply.
As far as Helm for OpenSearch - here is some progress Helm Chart for OpenSearch by TheAlgo · Pull Request #4 · opensearch-project/opensearch-devops · GitHub
As for Open Distro, the artifacts aren’t going anywhere but I would definitely consider them to be legacy. There is no one actively developing Open Distro. It has are unfixed bugs and issues. I would move as quickly as you can to OpenSearch.
That being said, Open Distro is the basis for Amazon’s service, so it’s possible that some fixes will be back ported in the future (the service will soon offer OpenSearch as the strongly encouraged option).