Hello Zaina,
For your requirements, you can perform portal customization (Admin > Portal > Customize portal > Layouts and pages section) to customize the footer of the customer portal. Please note that the customization changes made would reflect in the portals offered by Freshdesk. Kindly refer to this article to get detailed insights on the same.
Feel free to drop a note here for any further queries and we would be happy to help! :)
Cheers,
Freshdesk Community Team
You can add a disclaimer below the solutions by customizing the portal theme in Freshdesk. Go to Admin > Portals > Customize Portal, then edit the HTML/CSS of the solution article page to insert the text where needed. If you prefer a link, you can add it in the footer section of the article template.