<type name="MagentoFrameworkViewElementUiComponentDataProviderCollectionFactory">
      <plugin name="sales_order_pending" type="VendorModulePluginCustomSalesOrderGridCollection" sortOrder="100" />
</type>

<?php namespace VendorMOdulePlugin;

  use MagentoSalesModelResourceModelOrderGridCollection as SalesOrderGridCollection;

  class CustomSalesOrderGridCollection
  {
      private $collection;
      protected  $adminSession;
      protected $logger;
      public function __construct(
          SalesOrderGridCollection $collection,
          MagentoBackendModelAuthSession $adminSession,
          PsrLogLoggerInterface $logger
      ) {

          $this->messageManager = $messageManager;
          $this->collection = $collection;
          $this->adminSession = $adminSession;
          $this->logger = $logger;
      }

      public function aroundGetReport(
          MagentoFrameworkViewElementUiComponentDataProviderCollectionFactory $subject,
          Closure $proceed,
          $requestName
      ) {
         $current_adminuser =   $this->adminSession->getUser()->getAclRole();

         if(12 == $current_adminuser){  //Choose Your admin User Role.

           $result = $proceed($requestName);
           if ($requestName == 'sales_order_grid_data_source') {
               if ($result instanceof $this->collection) {
                   $this->collection->addFieldToFilter('status', array('in' => array('pending')));
               }

           }
         }
          return $this->collection;
      }
  }