SELECT 
  cscart_products_categories.product_id, 
  GROUP_CONCAT(
    IF(
      cscart_products_categories.link_type = "M", 
      CONCAT(
        cscart_products_categories.category_id, 
        "M"
      ), 
      cscart_products_categories.category_id
    )
  ) AS category_ids, 
  product_position_source.position AS position 
FROM 
  cscart_products_categories 
  INNER JOIN cscart_categories ON cscart_categories.category_id = cscart_products_categories.category_id 
  AND cscart_categories.storefront_id IN (0, 1) 
  AND (
    cscart_categories.usergroup_ids = '' 
    OR FIND_IN_SET(
      0, cscart_categories.usergroup_ids
    ) 
    OR FIND_IN_SET(
      1, cscart_categories.usergroup_ids
    )
  ) 
  AND cscart_categories.status IN ('A', 'H') 
  LEFT JOIN cscart_products_categories AS product_position_source ON cscart_products_categories.product_id = product_position_source.product_id 
  AND product_position_source.category_id = 7148 
WHERE 
  cscart_products_categories.product_id IN (
    98453, 98455, 98456, 98476, 98477, 98478, 
    98479, 98480, 98481, 98482, 98483, 
    98484, 98485, 98486, 98487, 98488, 
    98489, 98490, 98491, 98492, 98493, 
    98494, 98495, 98503, 98504, 98505, 
    98506, 98507, 98508, 98523, 98524, 
    98525, 98526, 98527, 98528, 98529, 
    98530, 98531, 98532, 98533, 98534, 
    98535, 98536, 98537, 98538, 98539, 
    98540, 98541, 98542, 98543, 98544, 
    98545, 98546, 98547, 98548, 98549, 
    98557, 98558, 98559, 98563, 98564, 
    98565, 98566, 98567, 98568, 98569, 
    98690, 98693, 98694, 98758, 98759, 
    98762, 98769, 98770, 98771, 98772, 
    98773, 98774, 98775, 98776, 98777, 
    98778, 98779, 98780, 98781, 98782, 
    98783, 98784, 98785, 98786, 98787, 
    98788, 98789, 98790, 98791, 98792
  ) 
GROUP BY 
  cscart_products_categories.product_id

Query time 0.01438

JSON explain

{
  "query_block": {
    "select_id": 1,
    "cost_info": {
      "query_cost": "192.45"
    },
    "grouping_operation": {
      "using_temporary_table": true,
      "using_filesort": true,
      "cost_info": {
        "sort_cost": "15.45"
      },
      "nested_loop": [
        {
          "table": {
            "table_name": "cscart_categories",
            "access_type": "ALL",
            "possible_keys": [
              "PRIMARY",
              "c_status",
              "p_category_id"
            ],
            "rows_examined_per_scan": 210,
            "rows_produced_per_join": 8,
            "filtered": "4.00",
            "cost_info": {
              "read_cost": "20.91",
              "eval_cost": "0.84",
              "prefix_cost": "21.75",
              "data_read_per_join": "21K"
            },
            "used_columns": [
              "category_id",
              "usergroup_ids",
              "status",
              "storefront_id"
            ],
            "attached_condition": "((`nuie_scalesta_net`.`cscart_categories`.`storefront_id` in (0,1)) and ((`nuie_scalesta_net`.`cscart_categories`.`usergroup_ids` = '') or (0 <> find_in_set(0,`nuie_scalesta_net`.`cscart_categories`.`usergroup_ids`)) or (0 <> find_in_set(1,`nuie_scalesta_net`.`cscart_categories`.`usergroup_ids`))) and (`nuie_scalesta_net`.`cscart_categories`.`status` in ('A','H')))"
          }
        },
        {
          "table": {
            "table_name": "cscart_products_categories",
            "access_type": "ref",
            "possible_keys": [
              "PRIMARY",
              "link_type",
              "pt"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "category_id"
            ],
            "key_length": "3",
            "ref": [
              "nuie_scalesta_net.cscart_categories.category_id"
            ],
            "rows_examined_per_scan": 175,
            "rows_produced_per_join": 15,
            "filtered": "1.05",
            "cost_info": {
              "read_cost": "2.59",
              "eval_cost": "1.54",
              "prefix_cost": "171.60",
              "data_read_per_join": "247"
            },
            "used_columns": [
              "product_id",
              "category_id",
              "link_type"
            ],
            "attached_condition": "(`nuie_scalesta_net`.`cscart_products_categories`.`product_id` in (98453,98455,98456,98476,98477,98478,98479,98480,98481,98482,98483,98484,98485,98486,98487,98488,98489,98490,98491,98492,98493,98494,98495,98503,98504,98505,98506,98507,98508,98523,98524,98525,98526,98527,98528,98529,98530,98531,98532,98533,98534,98535,98536,98537,98538,98539,98540,98541,98542,98543,98544,98545,98546,98547,98548,98549,98557,98558,98559,98563,98564,98565,98566,98567,98568,98569,98690,98693,98694,98758,98759,98762,98769,98770,98771,98772,98773,98774,98775,98776,98777,98778,98779,98780,98781,98782,98783,98784,98785,98786,98787,98788,98789,98790,98791,98792))"
          }
        },
        {
          "table": {
            "table_name": "product_position_source",
            "access_type": "eq_ref",
            "possible_keys": [
              "PRIMARY",
              "pt"
            ],
            "key": "PRIMARY",
            "used_key_parts": [
              "category_id",
              "product_id"
            ],
            "key_length": "6",
            "ref": [
              "const",
              "nuie_scalesta_net.cscart_products_categories.product_id"
            ],
            "rows_examined_per_scan": 1,
            "rows_produced_per_join": 15,
            "filtered": "100.00",
            "cost_info": {
              "read_cost": "3.86",
              "eval_cost": "1.54",
              "prefix_cost": "177.01",
              "data_read_per_join": "247"
            },
            "used_columns": [
              "product_id",
              "category_id",
              "position"
            ]
          }
        }
      ]
    }
  }
}