JavaScript on the backend is a rare thing to see, even in "resume driven development" scenarios it's usually some sort of static build that gets pushed to S3 or whatever.
Node.js is the most popular web framework/technology in the StackOverflow developer survey. Express is more popular than FastAPI, Django, Flask and Rails in the same survey. Just... what are you talking about?
Are you time traveling from 1998, when AOL acquired Netscape and sidelined Livewire?