I use Notebooks and Obsidian all the time
For translators, Paratext uses the SFM (standard format markers) and interprets them which allows user defined formatting for section headings, footnotes, etc. I'm not saying go the way of Paratext but the idea is the same as markdown, the file is a "dumb" text file and the additional characters indicate how to format the text (bold, italics, section heading1, section heading2, etc.)
Few people my age (63) use markdown but are stuck formatting as if they are using Microsoft Word which I think is too proprietary and is a fading technology or method of handling text.
https://feedback.faithlife.com/boards/logos-desktop-app/posts/markdown-in-notes
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