Is there a way to add custom portlets or suitelets to the Home/Dashboard on the Customer Center Customer Portal? Or is there a way to augment that experience so that clicking or navigating “home” directs to a custom home/dashboard experience?

I know it wasn't possible to publish dashboards to certain roles include Customer Center Roles and Employee Center Roles. I don't recall ever seeing this enhancement request was resolved. Suite Article 71275 which references this hasn't been updated since 2020 so I assume it's still not possible. (well it was resolved for Employee Center roles but only if you use SuiteHR!)