Indeed, but the output of LLMs today for these kinds of task are akin to a junior product designer, a junior project manager, a junior software architect etc.

For those of us who are merely amateur at any given task, LLMs raising us to "junior" is absolutely an improvement. But just as it's possible to be a better coder than an LLM, if you're a good PM or QA or UI/UX designer, you're not obsolete yet.