At https://next-auth.js.org/configuration/initialization it says that this package will be replaced by https://authjs.dev/reference/nextjs . But the latter is beta quality apparently.

Which package should I use with a new project?
Is the latter a drop-in replacement?
The former seems to have a lot better documentation.

Essentially I'm using an OICD IDP and need authn to query a backend sending Bearer tokens.
With a react SPA I'd use https://github.com/authts/react-oidc-context which is excellent.
But it's for SPA only so SSR needs something else.

I don't want to spend time later to replace one auth package with another and rewrite stuff.
This could've been a simple chat question, but I'm required to post here.