SELECT 
  * 
FROM 
  cscart_product_bundles as bundles 
  LEFT JOIN cscart_product_bundle_descriptions as descriptions ON bundles.bundle_id = descriptions.bundle_id 
  AND descriptions.lang_code = 'en' 
WHERE 
  1 = 1 
  AND bundles.display_in_promotions = 'Y' 
  AND bundles.status = 'A' 
  AND IF(
    bundles.date_from, bundles.date_from <= 1741888641, 
    1
  ) 
  AND IF(
    bundles.date_to, bundles.date_to >= 1741888641, 
    1
  ) 
GROUP BY 
  bundles.bundle_id 
ORDER BY 
  bundles.bundle_id asc

Query time 0.00047

JSON explain

{
  "query_block": {
    "select_id": 1,
    "filesort": {
      "sort_key": "bundles.bundle_id",
      "temporary_table": {
        "table": {
          "table_name": "bundles",
          "access_type": "ALL",
          "rows": 3,
          "filtered": 100,
          "attached_condition": "bundles.display_in_promotions = 'Y' and bundles.`status` = 'A' and if(bundles.date_from,bundles.date_from <= 1741888641,1) and if(bundles.date_to,bundles.date_to >= 1741888641,1)"
        },
        "table": {
          "table_name": "descriptions",
          "access_type": "eq_ref",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "10",
          "used_key_parts": ["bundle_id", "lang_code"],
          "ref": ["fluentmart_cscart.bundles.bundle_id", "const"],
          "rows": 1,
          "filtered": 100,
          "attached_condition": "trigcond(descriptions.lang_code = 'en')"
        }
      }
    }
  }
}