For real React projects, use CDN or CRA?

Question

React

The question is probably strange, but just having studied the dock on react, as I understand it, CDN is used for real projects?

Answer 1

Everything depends on the project. For some, create-react-app is more than enough. For some, they write their own builds or use third-party libraries like next.js.
If by CDN you meant UMD modules, then few people use them in projects.

Answer 2

If we are talking about the Content Delivery Network, then yes.
Real projects are different, I do not exclude those who are satisfied with the use of CRA.