Faster Startup for Azure App Config

/// Program.cs
public static IHostBuilder CreateHostBuilder(string[] args) =>
    Host.CreateDefaultBuilder(args)
        .ConfigureAppConfiguration(config =>
        {
            var configurationRoot = config.Build();
            var configEndpoint = configurationRoot.GetRequiredSection("AppSettings:AppConfigEndpoint").Get<string>();
            config.AddAzureAppConfiguration(options =>
            {
                // we created SetupHelper.DefaultAzureCredentialOptions (see below) to tell DefaultAzureCredential where to look
                options.Connect(new Uri(configEndpoint), new DefaultAzureCredential(SetupHelper.DefaultAzureCredentialOptions))
                    .Select("AppSettings:*")
                    .ConfigureRefresh(refreshOption =>
                    {
                        refreshOption.Register("AppSettings:Sentinel", true)
                            .SetCacheExpiration(TimeSpan.FromDays(15));
                    })
                    .ConfigureKeyVault(kv =>
                    {
                        kv.SetCredential(new DefaultAzureCredential(SetupHelper.DefaultAzureCredentialOptions));
                    });
            });
        });

public class SetupHelper {
    public static DefaultAzureCredentialOptions DefaultAzureCredentialOptions => new DefaultAzureCredentialOptions()
    {
        ExcludeAzureDeveloperCliCredential = true,
        ExcludeEnvironmentCredential = true,
        ExcludeAzurePowerShellCredential = true,
        ExcludeInteractiveBrowserCredential = true,
        ExcludeSharedTokenCacheCredential = true,
#if DEBUG
        ExcludeVisualStudioCodeCredential = false,
        ExcludeVisualStudioCredential = false,
#else
        ExcludeVisualStudioCodeCredential = true,
        ExcludeVisualStudioCredential = true,
#endif
        ExcludeManagedIdentityCredential = true,
    };    
}