Using IHostedService

[mattico]

I've got an app based on a template from the Windows Template Studio for WinUI.

I've got some background tasks to run. There's an IHost so why not use BackgroundService: IHostedService? The template doesn't start or stop the IHost, so I changed ActivationService a little:

    private async Task StartupAsync()
    {
        await _themeSelectorService.SetRequestedThemeAsync();
        await App.Current.Host.StartAsync();
    }

    private async void MainWindow_Closed(object sender, WindowEventArgs args)
    {
        await App.Current.Host.StopAsync();
    }

This seems to work fine, but I'm curious why it wasn't in the template to begin with. Is there some problem I missed? What's the standard way to run background tasks? Windows.ApplicationModel.Background? That has a lot of complexity that I don't need.