How to determine whether an app is WinForms/WPF and not a console or asp.net or something else?

Question

I need to write a .NET6 library that allows some features only when it's used with a WinForms or WPF app (so no console app, no web service, etc...).

I already checked some other posts like this but hits like Environment.UserInteractive or System.Diagnostics.Process.GetCurrentProcess().MainWindowHandle == IntPtr.Zero seem not to work.

Prerequisites are:

• it must be cross-platform
• it can't reference System.Windows.Forms or PresentationFramework
• I can't use methods that import Windows library like [DllImport("kernel32.dll")]
• I can't use a static method that is called by the application that uses my library

Listed below is the code I'm currently testing. It seems to work, but I'm wondering whether there is a more efficient and reliable way to reach my goal.

static bool? _isWindowsGuiApp = null;
    
static bool IsWindowsGuiApp()
{    
    if (!_isWindowsGuiApp.HasValue)
    {
        _isWindowsGuiApp = false;

        var entryAssembly = Assembly.GetEntryAssembly();

        if (entryAssembly != null)
        {
            string[] wpfAssemblies = { "PresentationFramework", "PresentationCore", "WindowsBase" };
            string[] winFormsAssemblies = { "System.Windows.Forms" };

            var referencedAssemblies = entryAssembly.GetReferencedAssemblies();

            foreach (var assemblyName in referencedAssemblies)
            {
                if (wpfAssemblies.Contains(assemblyName.Name))
                {
                    _isWindowsGuiApp = true; // WPF
                    break;
                }

                if (winFormsAssemblies.Contains(assemblyName.Name))
                {
                    _isWindowsGuiApp = true; // WinForms
                    break;
                }
            }
        }
    }

    return _isWindowsGuiApp.Value;
}