If handbrake scares them, don’t you dare to demonstrate how to use ffmpeg. I remember when I used handbrake for the first time and thought “wow, it’s much more convenient than struggling with ffmpeg”.
Using ffmpeg to convert one file to another remains probably my main use of general LLM web searches. This isn't to say it does a good job with that, but it's still ahead of me.
Just like with regexes I've yet to get a wrong result by doing "give me an ffmpeg command that does this and this" with an LLM, with Handbrake I'm never quite sure what I'm doing, too many checkboxes and dropdowns with default values already filled in.