ContrarianAgrarian on Nostr: Standard Notes has been great for my needs and has been getting even better recently ...

Standard Notes has been great for my needs and has been getting even better recently
https://standardnotes.com/features

But if you want the closest OneNote-like feel, Joplin is maybe what you’re looking for (though it doesn’t do tabs quite like OneNote)
https://joplinapp.org/