Use generic host builder rather than webhost

[VoIPTools]

Is it true that with .Net Core 3.1 we are encouraged to use the generic host builder rather than the web host builder? If so, how? In the sample code for selfhost it shows:

        var host = new WebHostBuilder()
            .ConfigureLogging(factory => factory.AddConsole())
            .UseStartup<Startup>()
            .UseAzureRelay(options =>
            {
                options.UrlPrefixes.Add(connectionString);
            })
            .Build();

.UseAzureRelay(options... is not available for the generic host builder