Methinks it's all boiling down to some kind of lingua franca for document structure. Altho things like footnotes and tables of content will not fit. Not RSN anyways.
I have used it and if you take time to customize it, it surpasses all the other options simply because you can do whatever you please with your data.
Sometimes I edit my markdown files in other editors like Bear (or web interfaces). Sometimes I draw handwritten notes on my ipad and insert them as images.
Not GP commenter, but I've used Apple Notes, emacs org-mode, Evernote, Notion, Coda, Obsidian, and Google Docs. I prefer Apple Notes for personal notes, and Google Docs for shared notes, and Notion for ones that I publish as web pages.
I've used Evernote, OneNote, Apple Notes, and Notion.
I prefer Notion hands down.
I dislike OneNote. Poor syncing. Hard to keep formatting consistent. Can't link to notes easily. Web app is inferior to installed app.
I used to love Evernote, but then it got slow, which led me to eval the others. This ultimately led me to Notion.