A lot of the projects looks like they were created to make it easier for Amazon to manage elasticsearch on their infrastructure and/or to overcome license limitations for features that already exists in Elasticsearch.
Are there specific repositories that you know of that would contain functionality that Elasticsearch does not have, that would be a strong differentiating factor? I'd be curious to index these projects to get a better idea of the investment that Amazon is putting into opendistro-for-elasticsearch that could have an impact on OpenSearch.
Most of the modules replace modules which Elastic provides, but not in the free distribution. For example, alerting, SAML auth/SSO, field and document filtering by user/role, etc.
However note that the most substantial module, the authentication module, is actually a fork of another product called Search Guard.
The differentiating factor in my case is simply the price. I think Elastic's X-pack modules actually provide a more complete overall experience, it's just not worth the cost. The Open Distro modules provide me with a budget alternative.
