Currently, as per our official documentation https://support.atlassian.com/confluence-cloud/docs/what-is-the-new-navigation-in-confluence/ there should be an option to drag and drop the "For you" and "company hub" features in the new navigation.

However, currently it is not possible to edit the two features in the sidebar as referenced in the screenshot below:

It would be great to add this feature as per the official documentation to the cloud sites.