/_count don't return valid result

Elastic Stack Elasticsearch
1

Hi, First of all, sorry for my question.
I recently started to work with elastic.
I think it is a simple question, but I can't found an explation for it.

I have this indexes.

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When I run /prd-pdl-core-labels/_count or /prd-pdl-core-attributes/_count I receive the value that is showed in docs.count
eg,

/prd-pdl-core-labels/_count?q=*:*
{
  "count": 1340,
  "_shards": {
    "total": 1,
    "successful": 1,
    "skipped": 0,
    "failed": 0
  }
}

But when I run /prd-pdl-core-products/_count I always receive count:1000.

/prd-pdl-core-products/_count?q=*:*
{
  "count": 1000,
  "_shards": {
    "total": 1,
    "successful": 1,
    "skipped": 0,
    "failed": 0
  }
}

Why ? I need to configure something to this index? This index has the same configuration from anothers.
What I'm doing wrong ?

I was under the impression that count should return the same value as docs.count.

If not, how do I get the total?
I tried a lot of different things. track_total_hits, max_result_window etc but I always receive 1000 for this index.