Location for Site-Wide Images

As part of our 6.5 LTS upgrade, we are looking to do some clean-up and re-locate images under /etc/designs/default

This indicates they should go under /apps/settings/wcm/designs/default (https://experienceleague.adobe.com/en/docs/experience-manager-65/content/implementing/deploying/restructuring/all-repository-restructuring-in-aem-6-5#default-designs)

However, this indicates they should go under /apps/XXX/clientlibs/clientlib-site/resources/images (https://experienceleague.adobe.com/en/docs/experience-manager-65-lts/content/implementing/developing/introduction/clientlibs#locating-a-client-library-folder-and-using-the-proxy-client-libraries-servlet)

What is the correct location?  I should note, we have 5 sites on our system, each with their own /apps directory (/apps/site1, /apps/site2, etc).  The images I am looking to re-locate are used on all 5 sites so not sure where I should put them.