Exactly, I think the user is new to Markdown and hasn’t yet understood it’s whereabouts.
You are thinking “formatting”, while Markdown is about meaning or “semantics”. To make the best use of Markdown, you have to think in terms
- level headings (H1, H2, …, H6)
- bullet lists
- numbered lists
- … and let’s not forget LINKS !
and that’s about it — there are some other “niceties”, but to begin, stick to the above, that would be my advice.
THEN, once you’ve got the “semantics”, you can think about the formatting. And that’s done in a style sheet (CSS). Either you find one that conveys esthetically and visually the meanings of your words, OR you make your own by editing one that is nearly what you want.
My two cents.
PS : what I mentioned may seem limited, but frankly, it’s quite powerful as far as note taking/making is concerned. And it’s quite possible to make beautiful and structured texts with just these few possibilities. If you need more… then, obviously, Obsidian is not the best tool and you’ve better use a word processer or, better still, a page layout program. One can imagine, for a few notes, to use PDFs as reference material or notes in an Obsidian vault.