Hide Categories from WooCommerce Loop

hidecat.php

// Add the code to your theme's functions.php file

function exclude_categories_from_shop_page( $query ) {
    if ( ! is_admin() && is_shop() && $query->is_main_query() ) {
        $tax_query = array(
            array(
                'taxonomy' => 'product_cat',
                'field'    => 'slug',
                'terms'    => array('unlimited-power', 'weapons'),
                'operator' => 'NOT IN'
            )
        );
        
        $query->set( 'tax_query', $tax_query );
    }
}
add_action( 'pre_get_posts', 'exclude_categories_from_shop_page' );