Standalone App + App Extension Support

I’ve run across something fairly critical in the documentation that appears to be incorrect: whether or not standalone (I.E. non-embedded) apps can implement app extensions.

https://shopify.dev/apps/getting-started/app-types

The offending text:

"However, you can build a standalone app, which isn’t embedded in the Shopify admin. Standalone apps expose their own user interface, on their own web domain, and don’t have access to app extensions."

Based on my own testing of having set up a standalone app that implements a theme app extension, this appears to be incorrect?

However, I’m still working from a development store, and it would be fantastic to get an official answer on whether the documentation is wrong, or if I’m going to run into errors with the theme app extension when launching the app on a production store. Much appreciated if anyone knows!

Addendum: my working theory is that, referencing the list of app extension points (https://shopify.dev/apps/app-extensions/list-of-extensions), Shopify Admin extension points are not available to standalone apps; that’s sensible, as they aren’t integrated with the Admin interface!

However, what is unclear is which of the other app extension points are unaffected by an app being standalone as opposed to embedded. Possibly all of them?

Shopify Partner Support has gotten back to me; developers have confirmed the documentation is erroneous and that theme app extensions do work for standalone apps, and the documentation will be updated to reflect as much!