Copiare una Modern Page su un'altra site collection con SharePoint CSOM

using System.Security;
using Microsoft.SharePoint.Client;
using OfficeDevPnP.Core.Pages;

private static void CopyPage()
{
	string userName = "xxx@xxx.onmicrosoft.com";
	string password = "???";
	string webUrlSrc = "https://xxx.sharepoint.com";
	string webUrlDest = "https://xxx.sharepoint.com/sites/HelpDesk2";

	using (ClientContext ctxDest = GetContext(webUrlDest, userName, password))
	{
		using (ClientContext ctxSrc = GetContext(webUrlSrc , userName, password))
		{
			// leggo la pagina con la libreria PNP
			ClientSidePage page = ctxSrc.Web.LoadClientSidePage("Home.aspx");
			// uso CSOM per copiare la pagina
			CopyPage(ctxDest, "HomeNew.aspx", page);
		}
	}
}

private static void CopyPage(ClientContext ctx, string newPageName, ClientSidePage page)
{
	try
	{
		ListItem item = page.PageListItem;

		// creo la nuova pagina
		ClientSidePage newPage = ctx.Web.AddClientSidePage(newPageName, true);

		if (page.PageHeader.ImageServerRelativeUrl != null)
		{
			newPage.PageHeader.ImageServerRelativeUrl = page.PageHeader.ImageServerRelativeUrl;
		}
		newPage.PageTitle = page.PageTitle;
		newPage.LayoutType = page.LayoutType;

		if (page.LayoutType == ClientSidePageLayoutType.Home)
		{
			newPage.RemovePageHeader();
		}

		if (!newPage.CommentsDisabled)
		{
			newPage.DisableComments();
		}
		if (!string.IsNullOrEmpty(Convert.ToString(item["PromotedState"])))
		{
			if (Convert.ToInt32(item["PromotedState"]) == 2)
			{
				newPage.PromoteAsNewsArticle();
			}
		}
		newPage.Save();


		ListItem newItem = newPage.PageListItem;
		newItem["CanvasContent1"] = item["CanvasContent1"];
		if (page.LayoutType != ClientSidePageLayoutType.Home)
		{
			newItem["PromotedState"] = item["PromotedState"];
		}
		newItem["PageLayoutType"] = item["PageLayoutType"];
		newItem["ClientSideApplicationId"] = item["ClientSideApplicationId"];
		newItem["LayoutWebpartsContent"] = item["LayoutWebpartsContent"];
		newItem.Update();
		ctx.ExecuteQuery();

		newPage.Publish();
	}
	catch (Exception ex)
	{
		Console.WriteLine("Error Message: " + ex.Message);
		throw ex;
	}
}

private static ClientContext GetContext(string webUrl, string userName, string password)
{
	SecureString securePassword = new SecureString();
	foreach (char c in password.ToCharArray())
	{
		securePassword.AppendChar(c);
	}
	ClientContext ctx = new ClientContext(webUrl);
	ctx.AuthenticationMode = ClientAuthenticationMode.Default;
	ctx.Credentials = new SharePointOnlineCredentials(userName, securePassword);
	return ctx;
}

static void Main(string[] args)
{
	CopyPage();
}