How to close Android Chrome custom tabs created by Browser.OpenAsync programmatically by C#?

[ysmoradi]

Consider the following code:

await Browser.OpenAsync(url, options: new()
{
    LaunchMode = BrowserLaunchMode.SystemPreferred
});

How can I close it later using C#? For example after 10 seconds

For the iOS, I've found the following:

if (UIKit.UIApplication.SharedApplication.KeyWindow?.RootViewController?.PresentedViewController is SafariServices.SFSafariViewController controller)
{
    controller.DismissViewController(animated: true, completionHandler: null);
}