[nazka]

I agree. PReact for instance comes to my mind. But it’s faster! And? And is it really in a business web app and not just a printf(« hello world »)? Does it matter that much? Do they have as many dev working on it? What about edge cases? More than anything for this type of change does your faster magic new thing has even an ecosystem?

[toastercat]

The answer to all your questions are "it depends". Context matters. To be honest, Preact would probably be a better fit for most projects using React.