It would be very useful to have trigger for order tags added or removed like these customer tag triggers: https://changelog.shopify.com/posts/shopify-flow-new-customer-tagging-triggers-and-ability-to-change-product-status.
My use case is for using Flow to integrate with post-purchase services like WebPurify. I want to send UGC content that is store in line item attributes to WebPurify after purchase. After the content has been verified, my WebPurify callback would add a “WebPurify Success” tag to the order. At this point, I’d like Flow to be triggered by this tag and initiate payment capture on the order.