Show all the categories list for each product on the shop page in Astra.

functions.php

<?php

/**
 * Shop page - Show all categories for each product on shop page 
 */
if ( ! function_exists( 'astra_woo_shop_parent_category' ) ) :
	function astra_woo_shop_parent_category() {
		if ( apply_filters( 'astra_woo_shop_parent_category', true ) ) : ?>
			<span class="ast-woo-product-category">
				<?php
				global $product;
				$product_categories = function_exists( 'wc_get_product_category_list' ) ? wc_get_product_category_list( get_the_ID(), ', ', '', '' ) : '';

				$product_categories = htmlspecialchars_decode( strip_tags( $product_categories ) );
				if ( $product_categories ) {
					list( $parent_cat ) = explode( ';', $product_categories );
					echo esc_html( $parent_cat );
				}

				?>
			</span> 
			<?php
		endif;
	}
endif;

Good!