How to change real IP or how to protect yourself from WebRtc?

Question

Node.js

Colleagues, good time of the day, maybe someone has come across such a task, I am writing a bot, the logic is simple, I went to the page, logged in to the personal account and went for a walk around the site. I use NODEJS + PUPPETEER. In fact, everything is simple and there are no surfing problems, but there is a moment.
Of course, I use a proxy, but I can not protect myself from webrtc, in other words, here I see the real IP. The task is to change it to any of the list. Someone may have faced the task, he broke his head. I will be grateful for any advice, only on the case of course.
Here is a snippet of the year:

const puppeteer = require('puppeteer');

async function run() {

    // const domain = `https://4it.me/`;
    const domain = `https://browserleaks.com/webrtc`;

    const pageOptions = { waitUntil: ['networkidle0','domcontentloaded'] };
    const userAgent = `Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36 Edge/17.17134`;
    const rulles = [
        'geolocation',
        'notifications',
        'camera',
        'microphone',
        'background-sync'
    ];
    const proxyUrl = `http://2.2.2.2:3000`;
    const username = 'someusername';
    const password = 'someusernamepassword';

    let options = {
        ignoreHTTPSErrors: true,
        headless: false,
        args: [
            `--no-sandbox`,
            '--start-maximized',
            `--disable-setuid-sandbox`,
            '--disable-infobars',
            `--proxy-server=${proxyUrl}`,
            `--host-resolver-rules=MAP ${domain} 2.2.2.2`,
        ],
        defaultViewport: {
            width: 1871,
            height: 949
        }
    };

    try {

        const browser = await puppeteer.launch(options);
        const page = await browser.newPage();
        const context = browser.defaultBrowserContext();

        await context.overridePermissions(domain, rulles);
        await page.setUserAgent(userAgent);
        await page.authenticate({ username, password });

        await page.goto(domain);

    } catch (e) {

        console.log(e);

    }
}

run();

According to the code, I think there will be no questions.

Answer 1

flekst , yes, I watched this case, it works, this extension hides the fingerprint.
I'll rephrase the question a little, how can I change the browser fingerprint? The task is to launch a client (browser) with a custom fingerprint. This is where the problem lies.