Experience teaches that that is a vastly exaggerated statement. There remains quite a lot of the World Wide Web that does not require Javascript.

And of course it is pretty much not required at all for using the Internet outwith the World Wide Web.

And then classic React enters the building

The Internet works just fine without JavaScript: DNS, FTP, SSH, SMTP, NNTP — none of them have ever required JavaScript. Indeed, HTTP works just fine without JavaScript. HTTP pages perform better without it.

Granted, many broken and ill-programmed HTTP pages aren't useful without JavaScript. That's no an indication of how useful it is, but rather an indication of how poorly-skilled those webmasters are.

Then there are web apps; they indeed don't work properly without JavaScript. Fortunately, there just aren't that many important web apps. To be honest, I can't think of one web app that I regularly use, other than Google Meet.

Your distinction between web pages and web apps is entirely arbitrary. Many web pages use JS in such a way that interacting with them without JS is a lesser, if not broken, experience.

Example: Is reddit a webpage or a web app? Correct - it's both.