Yes, you can use the linkable headings - see https://support.atlassian.com/confluence-cloud/docs/insert-the-anchor-macro/
(to explain the odd name of this url, there used to be an "anchor" macro in Confluence, but the functionality was absorbed into the linking stuff)
Hi All! We’re excited to share the launch of an announcement banner that lets Jira site administrators communicate directly to their users across their Jira Cloud instance. ...
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