I have written a lot of ffmpeg-python and plain ffmpeg commands using LLMs and while I am amazed at how good Gemini or chatGPT can handle ffmpeg prompts it is still not 100% so this seems to me like a big gamble on your part. However it might work for most users that only ask for simple things.
so creators on 100x will create well defined workflows that others can reuse. If a workflow is not found, llm creates one on the go and saves it.