Xamarin.Forms, MVVM and MVC

I'm new to Xamarin.Form. What does folks generally use in Xamarin.Forms apps - MVVM or MVC? I know MVC in asp.net environment. I see so many references to MVVM in Xamarin.Form than MVC in Xamarin.Forms, is MVVM a preferred architecture in Xamarin.Forms? Is it true that in MVVM, controller is replaced by VM?

Hoping someone will shed some light.