I think JS and PHP have a special status here and don’t count as an answer to what GP was asking. Many people hate JS and/or PHP, often for legacy reasons.
But it's not only JS, I used it as an example because these people are doing websites, yet don't even want to learn JS. They also hate to write SQL and are stuck with ORMs...
Not even at a language level. There are Java developers who only want to work with particular frameworks (Spring) and don't know anything else or want to learn anything else.
I know right around seven languages I would be comfortable claiming I knew on a job application. I am probably more opinionated about language features, but less picky about the specific language for it.