magento-test/app/code/Magento/Customer/view/adminhtml/templates/tab/view.phtml

<?php
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */

/**
 * Template for block \Magento\Customer\Block\Adminhtml\Edit\Tab\View
 */

/** @var $block \Magento\Customer\Block\Adminhtml\Edit\Tab\View */
?>
<?= $block->getChildHtml();