Absolutely no and this is again another myth. The engineers in top of their game are fairly independent of language and stacks. Learning required tools at accelerated speed is a hallmark of top engineers. Most of them often create new stacks and languages from the scratch. Here are some examples of 10x engineers: https://en.m.wikipedia.org/wiki/Coders_at_work. I don’t think they were 10X only for certain language or stack.