Apple’s iOS 17 Preview:
The new Journal app looks interesting, but from the limited demo it seems entirely local, with no sharing - unless I’ve missed something?
No one but you can access your journal.
With the integration with Shortcuts, and the potential for third party apps to contribute via the Journaling Suggestions API, all it needs is a little love for ActivityPub and it would be a powerful source for (micro-)blogging platforms like micro.blog.