Two Primary PS4s?
Can One PSN Account Be Primary on Two PS4 Consoles?

Learn why a single PlayStation Network account can only be primary on one PS4 console and how to access your games on multiple PS4s.

PSN Game Sharing
Can Two PSN Accounts Share Games on PS5 and PS4?

Learn how two PSN accounts can share games using Console Sharing on PS5 or Primary PS4 activation, enabling game access on one console.