Is there a way to save every username change into some kind of array (using mongodb)

const addUser = async (user) => {
    const mongoose = require('mongoose');

const UserSchema = new mongoose.Schema({
    userId: { type: String, required: true, unique: true }, 
    username: { type: String, required: true }, 
    discriminator: { type: String },
    isBot: { type: Boolean, default: false },
    usernameHistory: { type: [String], default: [] }
});

module.exports = mongoose.model('User', UserSchema);

const addUser = async (user) => {
    const mongoose = require('mongoose');

const UserSchema = new mongoose.Schema({
    userId: { type: String, required: true, unique: true }, 
    username: { type: String, required: true }, 
    discriminator: { type: String },
    isBot: { type: Boolean, default: false },
    usernameHistory: { type: [String], default: [] }
});

module.exports = mongoose.model('User', UserSchema);

client.on('userUpdate', async (oldUser, newUser) => {
    try {
        if (oldUser.username !== newUser.username) {
            console.log(`User ${oldUser.username} changed name to ${newUser.username}`);

            const user = await User.findOne({ userId: newUser.id });

            if (user) {
                user.username = newUser.username;
                if (!user.usernameHistory.includes(oldUser.username)) {
                    user.usernameHistory.push(oldUser.username);
                }

                await user.save();
                console.log(`Updated username for User ID: ${newUser.id}`);
            } else {
                console.log('User not found in the database.');
            }
        }
    } catch (error) {
        console.error('Error updating user:', error.message);
    }
});

client.on('userUpdate', async (oldUser, newUser) => {
    try {
        if (oldUser.username !== newUser.username) {
            console.log(`User ${oldUser.username} changed name to ${newUser.username}`);

            const user = await User.findOne({ userId: newUser.id });

            if (user) {
                user.username = newUser.username;
                if (!user.usernameHistory.includes(oldUser.username)) {
                    user.usernameHistory.push(oldUser.username);
                }

                await user.save();
                console.log(`Updated username for User ID: ${newUser.id}`);
            } else {
                console.log('User not found in the database.');
            }
        }
    } catch (error) {
        console.error('Error updating user:', error.message);
    }
});