I have enabled Show out of stock products in the admin Inventory section.

I have to show all in stock and out of stock products of one category(id=10 and its subcategory) in list and search result page. by hiding all out of stock products in remaining categories(But should show all in-stock products).

So when we are in category page(id is 10) need to show all in_stock and out of stock,

category page(id is not 10), Need to show only in_stock products.

If in the search result page, have to show both in_stock and out_of_stock(only from category id 10).

I used the below plugin.

Vendor\Module\etc\di.xml

<type name="Magento\CatalogSearch\Model\Search\IndexBuilder">
  <plugin name="Custom_Layernavigation::CustomLayernavigation"
  type="Vendor\Module\Plugin\CatalogSearch\Model\Search\IndexBuilder" />
</type>

Then Vendor\Module\Plugin\CatalogSearch\Model\Search\IndexBuilder.php

<?php
use Magento\Framework\Search\RequestInterface;

class IndexBuilder {    
protected $_request;
protected $_categoryHelper;
 protected $_logger;

public function __construct(
    \Magento\Catalog\Model\ResourceModel\Product\CollectionFactory $productCollectionFactory,
    \Magento\Catalog\Helper\Category $categoryHelper,
    \Magento\Framework\App\Request\Http $request,
    \Psr\Log\LoggerInterface $logger
) {
    $this->_productCollectionFactory   = $productCollectionFactory;
    $this->_categoryHelper = $categoryHelper;
    $this->_request = $request;
    $this->_logger = $logger;
}

public function aroundBuild($subject, callable $proceed, RequestInterface $request) {
    $select = $proceed($request);

    $collection = $this->_productCollectionFactory->create();
    $collection->addAttributeToSelect('*');     
    $collection->joinField(
        'qty', 'cataloginventory_stock_item', 'qty', 'product_id=entity_id', '{{table}}.stock_id=1', 'left'
    );
    $collection->addAttributeToFilter('qty',['gt'=>0])->load();
    $collection->getSelect()
        ->join(array('cat_index'=> 'catalog_category_product_index_store1'), "cat_index.product_id = e.entity_id")
        ->where('cat_index.category_id <> 10');
            
    return $select;
  }
}

Can someone update me on how to implement this functionality? I am unable to write a join query to match the above requirement. Please check and update me about this. Thanks for the help.