The LLM are already good enough to not do that anymore. Worst case scenario, you get wrong formatting, but not wrong content.

Markdown + pandoc is not the same: you need already basic formatting. You have to think about the formatting. For example, math formulas and code are gnarly to type, so I have snippets for them to avoid getting out of the flow.

But LLM don't need that, you can just dump your thoughts, and they format it.