Seriously though, every time some new hotness comes along, you don’t really have to use it or even waste your time looking at it. Markdown will likely be here after all of its derivatives are long gone.
Basic markdown format is good enough.
For specific cases, it depends what is the outcome - html, pdf…
But hell are binary formats that are used for page layout - vendor lock for centuries. Backward compatibility? Forget about it.
From this point of view people should stick to text based formats. Markdown, LaTex, Typst… you name it. Just use it :)