isAuthenticated === false vs user === null

import { getKindeServerSession } from "@kinde-oss/kinde-auth-nextjs/server";

const { isAuthenticated } = getKindeServerSession();
const isAuthed = await isAuthenticated();

if (!isAuthed) {
  ...
}

import { getKindeServerSession } from "@kinde-oss/kinde-auth-nextjs/server";

const { isAuthenticated } = getKindeServerSession();
const isAuthed = await isAuthenticated();

if (!isAuthed) {
  ...
}

import { getKindeServerSession } from "@kinde-oss/kinde-auth-nextjs/server";

const { getUser } = getKindeServerSession();
const user = await getUser();

if (!user) {
  ...
}

import { getKindeServerSession } from "@kinde-oss/kinde-auth-nextjs/server";

const { getUser } = getKindeServerSession();
const user = await getUser();

if (!user) {
  ...
}