I suppose the use case for using Notes to back a website is the same reason you'd use Notes over Notion, Obsidian, Todo apps, Evernote, and everything else: No

I suppose the use case for using Notes to back a website is the same reason you'd use Notes over Notion, Obsidian, Todo apps, Evernote, and everything else: Notes are built-in to your Macbook and iPhone, and they sync across them, and you're probably already using it. Every time I try to use a new tool, I end up going back to Notes.