WooCommerce Products Filter Custom Taxonomy

wc-products-filter-custom-tax.php

/**
 * Filter team products from main shop only on frontend on shop, category, and tag archives
 */
function exclude_team_products( $query ) {
	$archive_query = $query->is_post_type_archive('product') && $query->is_main_query();
	$cat_tag_query = $query->is_tax( array('product_cat', 'product_tag') ) && $query->is_main_query();
	if ( !is_admin() && $archive_query || !is_admin() && $cat_tag_query ) {
	  $taxquery = array(
			array(
				'taxonomy' => 'product_team',
				'field' => 'id',
				'terms' => '', //leave blank to filter all teams
				'operator'=> 'NOT EXISTS'
				)
		);
		$query->set( 'tax_query', $taxquery );
	
	}
}
add_action('pre_get_posts', 'exclude_team_products' );