Gruber and Schwarz knew that in simplicity is a beauty.

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 :)