Understand output of Search-telemetry data

Versions (relevant - OpenSearch/Dashboard/Server OS/Browser):
2.9

Describe the issue:
We have enabled search-telemetry setting in 2.9 version and it stores telemetry data in .kibana2 index.In 1.3.8,it stores the data in .kibana1 and setting is enabled by default.is my understanding correct?
Can someone please help me to understand the output or how do we read the below fields .It does not provide any metrics to the dashboard too in the output .
Query"
GET .kibana*/_search
{
“query”: {
“query_string”: {
“query”: “type:search-telemetry”
}
}
}
Output:

“hits”: [
{
“_index”: “.kibana_2”,
“_id”: “search-telemetry:search-telemetry”,
“_score”: 3.0743754,
“_source”: {
“search-telemetry”: {
“successCount”: 23153,
“errorCount”: 89,
“averageDuration”: 1.202932382789254e-21
},
“type”: “search-telemetry”,
“references”: ,
“updated_at”: “2024-04-10T15:08:57.871Z”
}
}

Configuration:

Relevant Logs or Screenshots: