is it a requirement to initialize firestore inside a project ? or can I just write the rules inside the google console?

Question

is it a requirements to initialize fire store inside a react app ? or can I just write the rules inside the google console ? I mean what are the use case for the initialization other than writing the rules locally inside vs rather then the webpage?

// Import the functions you need from the SDKs you need
import { initializeApp } from 'firebase/app';
import { getAuth } from 'firebase/auth';
import { getFirestore } from 'firebase/firestore';
import { getStorage } from 'firebase/storage';
//import { getFirestore } from 'firebase/fireStore';
// TODO: Add SDKs for Firebase products that you want to use
// https://firebase.google.com/docs/web/setup#available-libraries

// Your web app's Firebase configuration
const firebaseConfig = {
  apiKey: process.env.REACT_APP_FIREBASE_Key,
  authDomain: process.env.REACT_APP_FIREBASE_DOMAIN,
  databaseURL: process.env.REACT_APP_FIREBASE_URL,
  projectId: process.env.REACT_APP_FIREBASE_PROJECT_ID,
  storageBucket: process.env.REACT_APP_FIREBASE_BUCKET,
  messagingSenderId: process.env.REACT_APP_FIREBASE_SENDER_ID,
  appId: process.env.REACT_APP_FIREBASE_APP_ID,
};

// Initialize Firebase
export const app = initializeApp(firebaseConfig);
export const auth = getAuth(app);
export const db = getFirestore(app);
export const storage = getStorage(app);