GravityView - Exact-match search (not fuzzy) for a specific field and View

gravityview-strict-search.php

<?php

/**
 * Return strict "is" comparison operator when processing a search on a specific View and field.
 *
 * @param string $operator Existing search operator
 * @param array $filter array with `key`, `value`, `operator`, `type` keys
 * @param \GV\View $view The View we're operating on.
 *
 * @return string
 */
add_filter( 'gravityview_search_operator', function ( $operator, $filter, $view ) {

	// Only run on /suggested-rule-change-comments/
	if( 7768 !== $view->ID ) {
		return $operator;
	}

	if ( '7' === $filter['key'] ) {
		return $operator;
	}

	return 'is';
}, 10, 3 );