Create a centered list in SwiftUI with max width

Is there a way to have a list in SwiftUI that has a max width in grouped style like the Settings app on an iPad Pro 12.9" ?

I have tried with something like:

Code Block 
List {
	 Text("Hello, world!").padding()
}
.frame(maxWidth: 600)
.listStyle(InsetGroupedListStyle())

and it gets me half the way. The list is centered with the max width. However, I can't set the background in a way that it covers the whole page. The List view sets its background to the system grouped background as expected for InsetGroupedListStyle. And I can wrap the list in a HStack and set a background on that. But the list even add background color up in the navigation bar, but that I cannot change. So I still can't figure out a way to do it.

Code Block 
HStack {
	Spacer()
	List {
		Text("Hello, world!").padding()
	}
  .frame(maxWidth: 600)
  .listStyle(InsetGroupedListStyle())
  Spacer()
}
.background(Color(UIColor.systemGroupedBackground))

I can probably accomplish what I want with just a ScrollView and make my own list. But I think that will reduce the performance?