Hi Reggie,
Thank you for reaching out. The Responsive Display Ad will be the same no matter which campaign type you choose. If you are creating the Ad through the API, make sure you are using the MultiAssetResponsiveDisplayAd type instead of ResponsiveDisplayAd type (since this has been deprecated). For more information on the goals of the specific campaigns, please see Search Campaign and Display Campaign.
Regards,
Anthony
Google Ads API Team