React is not a framework. It is a fancy HTML templating library first and foremost and you should use it when you need HTML templates, which means you that can

React is not a framework. It is a fancy HTML templating library first and foremost and you should use it when you need HTML templates, which means you that can use as little or as much of it as you want. I’ve built mostly static pages with React loaded and embedded into parts of the page. The webpages would function without JavaScript enabled.