Using IEnumerable<> configuration class properties in the asp.net core 3.1

appsettings.json

{
    "Applications": {
        "AppList": [
            {
                "Name": "test1",
                "Roles": [ "readers", "writers" ]
            }
        ]
    }
}

Startup.cs

public class Startup
{
	public void ConfigureServices(IServiceCollection services)
	{
		services.Configure<Applications>(options => Configuration.GetSection("Applications").Bind(options));
		var apps = services.BuildServiceProvider().GetService<IOptionsSnapshot<Applications>>();

		if (apps.Value.AppList == null || !apps.Value.AppList.Any())
		{
			var sample = new Applications();

			sample.AppList = new List<Application>() { 
				new Application { Name = "test1", Roles = new[] { "readers", "writers" } },
				new Application{ Name = "abracadabra", Roles = new[] { "magic", "hobbit" } }, 
			};

			var str = JsonConvert.SerializeObject(sample);

			Console.WriteLine(str);

			var apps2 = JsonConvert.DeserializeObject<Applications>(str);

			if (!apps2.AppList.Any())
				throw new ArgumentException("appList fault Newtonsoft.Json");

			var apps3 = System.Text.Json.JsonSerializer.Deserialize<Applications>(str);

			if (!apps3.AppList.Any())
				throw new ArgumentException("appList fault System.Text.Json");
		}
  }
}

public class Application
{
	public string Name { get; set; } = "";
	public IEnumerable<string> Roles { get; set; } = new[] { "" };
	public Application ToApplicationWithoutPass() =>
		new Application
		{
			Name = Name,
			Roles = Roles.ToList().ToArray()
		};
}

public class Applications
{
	public IEnumerable<Application> AppList { get; set; } = new List<Application>();
}