ps The nested tables in OneNote must be converted to simple tables manually, otherwise the tables will not convert correctly from HTML to MarkDown.
pss The OneNote Md Exporter description says: “Table with nested image - Html table, image lost”. They will not be lost - the links to them are preserved, you just need to separately translate each table with images from HTML Tables to MarkDown.
Perhaps someone will find these ways useful:
Hi, I am the developer of onenote-md-export, if you see any bug of missing feature, feel free to open an issue on GitHub.
Hop the tool can help Obsidian users.