There is no "10X" touch-typist because a) the performance limit is absolute & relatively low and b) the learning curve is such that it's easy to get to the limit and plateau. Now let's increase complexity - still typing, but you must translate the text from another language. Increase again - now you're translating poetry. Increase again - the poetry is original Shakespeare. You need to translate into contemporary English approachable to Gen Z, as a script for a TikTok short, referencing memes from current events. There is no doubt that
some people will have a combination of talents - in language, typing, copywriting, built-up cultural knowledge, lived experiences - that will make them 10X in such jobs.
The more software development work approaches touch-typing, the less difference between 1x and 10X — strict Jira tickets in, garbage out, maybe slightly faster. Spec-work, and most grunt-work, is undifferentiated and does not benefit from a 10X person. The more your work approaches poetry - such as exercising user empathy, improving the architecture, considering UX, respecting performance constraints, understanding user's jobs to be done, and improving your implementation around that - the more creative space there is for 10X to reveal itself.