Bookmarks in Elytra are great for referencing articles later, or for saving them to read later.
iOS and macOS
There are multiple ways to bookmark an article in iOS and macOS. You can bookmark an article by:
long tapping on an article to bring up its context menu, then tapping Bookmark.
in the Article interface, tapping bookmark in the toolbar (on iOS only).
swiping left on an article to reveal the swipe actions.
You can optionally hide the Bookmarks listing in the Feeds Interface by toggling the option under Settings > Miscellaneous.