C# How to launch Chrome and make it perform a web request having Basic Authentication

Question

I'm trying to write C# code that launches chrome.exe to a specific web page, but my requirements involve opening a page that needs Basic Authentication. I am told to provide the Basic Authentication in the request header, and not in the URL. The C# code below launches chrome.exe:

        Process proc = new Process();
        proc.StartInfo.FileName = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe";
        proc.StartInfo.Arguments = "http:\\www.anyurl.com";
        proc.Start();

But now, how do I make Chrome open a page with a specific request having Basic Authentication in the request header? I found the code below, but I don't know how to merge the two snippets.

        var webRequest = (HttpWebRequest)WebRequest.Create("http://localhost:51232/");
        webRequest.Method = "GET";
        webRequest.ContentType = "application/json";
        webRequest.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.99 Safari/537.36";
        webRequest.ContentLength = 0; // added per comment
        string autorization = "username" + ":" + "Password";
        byte[] binaryAuthorization = System.Text.Encoding.UTF8.GetBytes(autorization);
        autorization = Convert.ToBase64String(binaryAuthorization);
        autorization = "Basic " + autorization;
        webRequest.Headers.Add("AUTHORIZATION", autorization);
        var webResponse = (HttpWebResponse)webRequest.GetResponse();
        if (webResponse.StatusCode != HttpStatusCode.OK) Console.WriteLine("{0}", webResponse.Headers);
        using (StreamReader reader = new StreamReader(webResponse.GetResponseStream()))
        {
            string s = reader.ReadToEnd();
            Console.WriteLine(s);
            reader.Close();
        }