Display primary category on shop page

display_primary_cat_shop.php

<?php // Do not include this line in your theme's functions.php.

add_filter( 'astra_woo_shop_product_categories', 'display_primary_category_on_shop', 10, 2 );

function display_primary_category_on_shop( $categories_html, $product_id ) {

	$terms = get_the_terms( $product_id, 'product_cat' );
	
	if( ! empty( $terms ) ) {
		$primary_category = get_post_meta( $product_id, '_yoast_wpseo_primary_product_cat', true );
		foreach( $terms as $term ) {
			if( $term->term_id == $primary_category ) {
				return $term->name;
			}
		}
	}

	return $categories_html;
}