Incorrect count with right join Laravel 9

Hello, i use Laravel 9 and have issue with records counting. Somebody can explain to me why count = 2, please? Here is my code:

    $request->validate([
        'limit' => 'required|integer|min:1|max:100',
    ]);

    $base_query = Review::rightJoin('excursion_types', 'excursion_types.id', '=', 'reviews.excursion_type_id')
        ->rightJoin('excursions', 'excursions.id', '=', 'excursion_types.excursion_id')
        ->when($request->category, function ($query) use ($request) {
            $query->rightJoin('excursion_categories', 'excursion_categories.excursion_id', '=', 'excursions.id');
            $query->rightJoin('categories', function (JoinClause $join) use ($request) {
                $join->on('categories.id', '=', 'excursion_categories.category_id')
                    ->where('categories.alias', '=', $request->category);
            });
        }, function ($query) {
            $query->rightJoin('excursion_categories', 'excursion_categories.excursion_id', '=', 'excursions.id');
            $query->rightJoin('categories', 'categories.id', '=', 'excursion_categories.category_id');
        })
        ->when($request->city, function ($query) use ($request) {
            $query->rightJoin('city_categories', 'city_categories.category_id', '=', 'categories.id');
            $query->rightJoin('cities', function (JoinClause $join) use ($request) {
                $join->on('cities.id', '=', 'city_categories.city_id')
                    ->where('cities.alias', '=', $request->city);
            });
        })
        ->where('reviews.status', ReviewStatusEnum::ACTIVE->value)
        ->where('reviews.rating', '>=', 4)
        ->groupBy('reviews.id');

    
    $reviews_count = $base_query->count();

    $reviews = $base_query->with('reviewImgs')
        ->select(array_merge(
            ['reviews.*'],
            $request->category ? ['categories.alias as category_alias'] : [],
            $request->city ? ['cities.alias as city_alias'] : []
        ))
        ->orderBy('reviews.created_at', 'desc')
        ->limit($request->limit)
        ->get();

    return [
        'reviews'       => $reviews,
        'reviews_count' => $reviews_count,
    ];

And i get answer from server like:

{
  reviews: [
    {
      id: 1337,
      user_id: 1609,
      excursion_type_id: 43,
      body: 'text 1337',
      rating: 5,
      status: 'active',
      responded_at: '2024-05-14 08:06:53',
      is_anonymously: 0,
      created_at: '2025-04-14T20:00:00.000000Z',
      updated_at: '2025-04-14T15:35:11.000000Z',
      review_imgs: []
    },
    {
      id: 1333,
      user_id: 1605,
      excursion_type_id: 248,
      body: 'text 1333',
      rating: 5,
      status: 'active',
      responded_at: '2024-05-14 08:06:53',
      is_anonymously: 0,
      created_at: '2025-04-14T20:00:00.000000Z',
      updated_at: '2025-04-14T15:32:41.000000Z',
      review_imgs: []
    },
    {
      id: 1342,
      user_id: 1614,
      excursion_type_id: 106,
      body: 'text 1342',
      rating: 5,
      status: 'active',
      responded_at: '2024-05-14 08:06:53',
      is_anonymously: 0,
      created_at: '2025-04-12T20:00:00.000000Z',
      updated_at: '2025-04-14T15:39:05.000000Z',
      review_imgs: []
    },
    {
      id: 1331,
      user_id: 1603,
      excursion_type_id: 266,
      body: 'text 1331',
      rating: 5,
      status: 'active',
      responded_at: '2024-05-14 08:06:53',
      is_anonymously: 0,
      created_at: '2025-04-12T20:00:00.000000Z',
      updated_at: '2025-04-14T15:31:45.000000Z',
      review_imgs: []
    },
    {
      id: 1345,
      user_id: 1617,
      excursion_type_id: 307,
      body: 'text 1345',
      rating: 5,
      status: 'active',
      responded_at: '2024-05-14 08:06:53',
      is_anonymously: 0,
      created_at: '2025-04-12T20:00:00.000000Z',
      updated_at: '2025-04-14T15:40:46.000000Z',
      review_imgs: []
    },
    {
      id: 1335,
      user_id: 1607,
      excursion_type_id: 252,
      body: 'text 1335',
      rating: 5,
      status: 'active',
      responded_at: '2024-05-14 08:06:53',
      is_anonymously: 0,
      created_at: '2025-04-12T20:00:00.000000Z',
      updated_at: '2025-04-14T15:33:56.000000Z',
      review_imgs: []
    },
    {
      id: 1347,
      user_id: 1619,
      excursion_type_id: 257,
      body: 'text 1347',
      rating: 5,
      status: 'active',
      responded_at: '2024-05-14 08:06:53',
      is_anonymously: 0,
      created_at: '2025-04-12T20:00:00.000000Z',
      updated_at: '2025-04-14T15:42:16.000000Z',
      review_imgs: []
    },
    {
      id: 1339,
      user_id: 1611,
      excursion_type_id: 21,
      body: 'text 1339',
      rating: 5,
      status: 'active',
      responded_at: '2024-05-14 08:06:53',
      is_anonymously: 0,
      created_at: '2025-04-12T20:00:00.000000Z',
      updated_at: '2025-04-14T15:37:20.000000Z',
      review_imgs: []
    },
    {
      id: 1348,
      user_id: 1620,
      excursion_type_id: 62,
      body: 'text 1348',
      rating: 5,
      status: 'active',
      responded_at: '2024-05-14 08:06:53',
      is_anonymously: 0,
      created_at: '2025-04-12T20:00:00.000000Z',
      updated_at: '2025-04-14T15:43:03.000000Z',
      review_imgs: []
    },
    {
      id: 1336,
      user_id: 1608,
      excursion_type_id: 35,
      body: 'text 1336',
      rating: 5,
      status: 'active',
      responded_at: '2024-05-14 08:06:53',
      is_anonymously: 0,
      created_at: '2025-04-12T20:00:00.000000Z',
      updated_at: '2025-04-14T15:34:34.000000Z',
      review_imgs: []
    },
    {
      id: 1340,
      user_id: 1612,
      excursion_type_id: 83,
      body: 'text 1340',
      rating: 5,
      status: 'active',
      responded_at: '2024-05-14 08:06:53',
      is_anonymously: 0,
      created_at: '2025-04-12T20:00:00.000000Z',
      updated_at: '2025-04-14T15:37:55.000000Z',
      review_imgs: []
    },
    {
      id: 1341,
      user_id: 1613,
      excursion_type_id: 104,
      body: 'text 1341',
      rating: 5,
      status: 'active',
      responded_at: '2024-05-14 08:06:53',
      is_anonymously: 0,
      created_at: '2025-04-12T20:00:00.000000Z',
      updated_at: '2025-04-14T15:38:21.000000Z',
      review_imgs: []
    }
  ],
  reviews_count: 2
}