How to use SSR and prevent the flicker in the client when the session is not loaded yet?

[denik1981]

I have noted the example from next-auth-example delays (on purpose and with animations) a certain time the header that shows the state from the session, In particular who is logged in and the button that toggles from Sign-in/Sign-out. If you refresh the page you can clearly see a flicker until the session is loaded by useSession.

How can I prevent this flicker from happening using getSession and SSR?
Is there a way that useSession will fall back to the session got by getSession in the server (if there is one) so to render my page in consequence?