What projects are prohibited from writing in React under a license?

Question

React

I heard that you can’t create Facebook competitors on React. I would like to know the details. For example, what are the criteria for competition? Does this only apply to Facebook or all Meta products? Can Meta finish a feature taken from someone and declare them competitors?

Answer 1

https://github.com/facebook/react/blob/main/LICENSE

Answer 2

React uses the MIT license => no restrictions.
Xs where did this bike come from (maybe it was like that when the react just came out, xs)

Answer 3

I understand that many commentators might not have been involved in front-end until 2017 (and, apparently, this is how it is :) ), but why write nonsense if it’s not clear in the topic.
https://habr.com/ru/news/t/338642/