Solution: to make this work with [products] shortcode

Firstly, thanks for the plugin.

I wrote this custom code to make it work with the [products] shortcode. Hopefully someone finds this useful.

/**
 * 2023-02-17: user-selectable page-size for Woo products when using [products] shortcode and the 'Woocommerce Products Per Page' plugin
 * The [products] shortcode has to set paginate='true', e.g. [products paginate='true']
 */

add_filter( 'woocommerce_shortcode_products_query', function($query_args, $attributes, $type){
	// error_log("SLW: In woocommerce_shortcode_products_query. query_args: " . print_r($query_args, true));

	$ppp = 36;	// Default
	if (isset($query_args['posts_per_page'])) { $ppp = $query_args['posts_per_page']; }

	if ( function_exists( 'Woocommerce_Products_Per_Page' ) ) {
		$ppp = Woocommerce_Products_Per_Page()->front_end->loop_shop_per_page($ppp);

		if (!empty($ppp)) {
			$query_args['posts_per_page'] = $ppp;
		}
	}

	return $query_args;
}, 10, 3);