When integrating a third-party UI library, what should be a primary consideration to ensure compatibility with React's reactive data flow?

A primary consideration when integrating a third-party UI library with React is to ensure that the library uses native DOM manipulation. React's reactive data flow relies on its Virtual DOM, so libraries that directly manipulate the DOM can cause compatibility issues and break React's rendering optimization. The other options are relevant but not the primary concern for compatibility with React's reactive data flow.