I don’t get this @kris why would we want to make a dashboard in the OpenSearch product for a non-open source technology like Heartbeat. These dashboards are packaged with the solutions.
Step 4: Set up the Kibana dashboards | Heartbeat Reference [6.8] | Elastic
Here are the docs to install them. Naturally since this is Elastic they are going to continue to break these and make them incompatible with open source technologies as they have been doing with all *beats for the last 6 months. I don’t see why we would want to support this in an open source project.