Werk counts visits and orders. The script sets no cookies and stores no IP addresses. Only when a visitor agreed to marketing cookies and the site reports conversions to Meta, the Facebook click id is kept in the browser for 90 days.
The script is not loaded for logged-in users who can edit posts, so your own clicks do not count.
On the thank-you page of a WooCommerce or Easy Digital Downloads order, the order number and total are reported once. When statistics are switched off in Werk, the script is removed at the next hourly ping.