As an everyday React user, I tend to disagree. React could be used in a framework sure, but its value is in the fact that it is JUST a view layer. It’s used with a variety of libraries as you have mentioned, but there is zero cost to the experienced user in isolating the libraries from on another.

It think there is a lack of data access and manipulation libraries out there in the wild. As mentioned in other responses there is Relay, and a few others too, but there isn’t the same volume of choice as other parts (eg routers) and It causes headaches when it comes to server interaction for new users and large scale users (in refactoring poor early decisions).

I think there probably just needs to be better documentation of PATTERNS of data interaction that are minimal and functional and then the community can go from there.