You can configure a publish extension to display the URL of the published design with the anchor text "View in [App name]" instead of the complete URL.
To do this:
Navigate to an app via the Developer Portal.
From the Extensions page, expand the Publish pane.
Enable Generate external link.
At a minimum, the URL a publish extension provides must allow the user to view their published design in the context of the destination platform. For example, if a user publishes a design to Twitter, they should see a link to their tweet.
If the destination platform expects further action, the URL should take the user to where they can complete that action. For example, a website creation tool may provide the URL of a page that allows the user to choose where to place their published design.