Firebase v9 on react JS

I just want to check if i dont create an other chats on my firebase. I query all my chat with this email and then, i check if the array contain the email i wanna tchat with but it doesn't work. I'm using Firebase V9. Anyone has an idea ?

function Sidebar() { const [user] = useAuthState(auth);

const chatRef = collection(db, 'chats');
const qchatExist = query(chatRef, where('users', 'array-contains', user.email) );
const chatsSnapshot = getDocs(qchatExist);

const createChat = () => {

    const input = prompt('Please enter a email adresse');
    if(!input) return;
    if (EmailValidator.validate(input) && !chatAlreadyExists(input) && input !== user.email ) {
        console.log("valide");
        addDoc(collection(db, 'chats'),
        {
            users: [user.email, input],
        });
    }
    else {
        console.log('invalide');
    }
}

const chatAlreadyExists = (data) =>
    !!chatsSnapshot?.docs.find( 
        chat => 
            chat.data().users.find( (user) => user === data)?.length > 0
    );

code