Google Customer Reviews Integration Post-Checkout Extensibility Upgrade

Now that Checkout Extensibility removed the “additional scripts” window in the checkout editor, I am struggling to add the Google Customer Reviews code that they require for that survey to function on the order status page. Any tips as to implementing the suggested google code to the new post-purchase pages?

@FlagsForGood you can add pixel and other scripts in customer event in the backend.

I tried this. The code copied from Google Merchant Center as well as this blog which tries to make it more copacetic with Shopify both throw errors and wont let me save the new custom pixel. https://www.digitaldarts.com.au/google-customer-reviews-shopify