Weire going to create 4 Pages and 4 ViewModels. Start by creating a suitable folder structure. This is the recommended layout, but if you have a different preference that's good too.
Recommended folder layout
In the Mvvm/Pages folder, right-click and add a .NET MAUI ContentPage (XAML)
Adding a ContentPage
In ReadyPage.xaml replace the Label Text with "Welcome to ReadyPage!"
Repeat the process for SteadyPage.xaml, GoPage.xaml and DetailPage.xaml