When you create footnotes, it is rendered by Obsidian and they’re listed at the end of note after a horizontal line. Due to the fact that when you collapse the last header in note the whole footnotes section will get collapsed which is not ideal for reading.
Either allow user to add custom headers for footnotes or treat the footnotes as it’s own section (Ideally level 1/2 header).
While adding a header solves this problem, it’s not good looking either and it makes the horizontal line meaningless:
I haven’t find any, yet. Correct me if I’m wrong about it.