What happened to the "Publish Now" and "Archive" options in the CMS editor?

The “publish now” and “archive” options are no longer available when I’m creating or editing a blog post in the CMS. Is this something that’s changed in the transition to the new UI, or have I done something?
Not being able to archive a post is… inconvenient.
Screenshot 2024-01-18 at 6.01.11 PM

Here is my public share link: LINK
(how to access public share link)