Does doing a POST query via the devtools update index-pattern?

Elastic Stack Elasticsearch
1

Does doing a POST query likes these via the devtools update index-pattern?

If the answer is yes.
Does it impact the data in Elasticsearch?
Or its purely visualization?

POST /_query?format=txt
{
  "query": """
  FROM .ml-notifications*
|   WHERE (job_id) == "kibana-logs"
    AND message IN ("Datafeed stopped", "Job opened")
|   LIMIT 10
    """
}

POST /_query?format=txt
{
  "query": """
  FROM ABCD:.monitoring-*
|   WHERE @timestamp > NOW() - 8 hours
    AND (node_stats.process.cpu.percent) > 50
    OR (node_stats.jvm.mem.heap_used_percent) > 50
|   STATS 
      process_cpu = AVG(node_stats.process.cpu.percent),
      jvm_mem = AVG(node_stats.jvm.mem.heap_used_percent),
      fs_avail = AVG(elasticsearch.node.stats.fs.total.available_in_bytes)
    BY elasticsearch.node.name
    EVAL fs_avail_gb = ROUND((TO_DOUBLE(fs_avail) / 1,073,741,824) * 100, 2)
|   WHERE process_cpu > 50
|   SORT process_cpu DESC
|   LIMIT 100
    """
}
2

What index pattern? The Data Views in Kibana?

If so, this is unrelated, those requests would be the same as if you used an external tool to make a query.

Data Views are a Kibana feature.