There is a vanishingly small percentage of people actually working on the design and training of LLMs vs all those who call themselves "AI engineers" who are just hitting APIs.
Probably it's because we are not training them anymore and just using with prompts. Seems like more of a swe regular type of job
except regular swe is way more fun than writing prompts
I'd say deep learning is a subset of machine learning, and LLMs are a subset of deep learning.