Well, depends on the context.

Create React App is deprecated and it's use is not recommended.

Next.js has its own niche of people looking for a complete solution rather than just using a library.

And others like Vite, offers multiple alternatives.

The point is that if you use a framework, then, you have a framework. But React does not imply that.

Furthermore. Can you tell from which "library" is this code?

export function HelloWorld() { return <h1>Hello World</h1>; }