Good solution, but I read the theme app extension document, there are some file and content size limits:
But for react V18.2.0, React(7KB) + React-dom(132KB) = 139KB, in other words the bundle.js size will always oversize of 15KB of “Size of each local file” enforce limit. I think if we used React&React-dom in our public app(extension), the app store will rejected it.
Not to know is there any app(extension) used this solution to pass the app store review, glad to hear it.