Yes! You can use the Partner Portal without publishing a listing in the Partner Network. All IONOS Partners can communicate with their customers via the portal at any time after signing up and manage all their projects without making their Agency Partner Network listing public. You don't have to join unless you want to.
You can also use the Agency Partner Network without access to the IONOS Agency Partner Portal. Anyone can search for agencies, freelancers, and web professionals in the IONOS Agency Partner Network without creating an account.