How to prevent text from being truncated in a List?

I am repeatedly getting stuck on situations like this, where I have a List with extracted views, which use GeometryReader to layout their subviews as a proportion of the view itself, and they do not render properly. Here's an example, where the text is getting truncated. I am unsure why it is happening.

Here's a simplified version of the code:

Code Block 
import SwiftUI
struct RatioTestView: View {
    var body: some View {
        List {
            ForEach(0..<100) { index in
                RatioSubView()
                    .listRowInsets(EdgeInsets())
            }
        }
        .listStyle(InsetGroupedListStyle())
        .navigationTitle(Text("Long text"))
    }
}
struct RatioTestView_Previews: PreviewProvider {
    static var previews: some View {
        NavigationView {
            RatioTestView()
        }
    }
}
struct RatioSubView: View {
    var body: some View {
        GeometryReader { geometry in
            HStack(spacing: 0) {
                Text("Hello there! This is some really long text. And I can't figure out how to prevent this from getting truncated.")
                    .lineLimit(Int.max)
                    .layoutPriority(1)
                    .frame(maxHeight: .infinity)
                    .frame(width: geometry.size.width * 0.4)
                    .background(Color.yellow)
                
                VStack(spacing: 0) {
                    Color.red
                        .frame(height: geometry.size.height * 0.2)
                    Color.blue
                        .frame(height: geometry.size.height * 0.4)
                    Color.green
                        .frame(height: geometry.size.height * 0.4)
                }
                .frame(width: geometry.size.width * 0.6)
            }
        }
    }
}

Does this have to do with the fact that I haven't given the rows a height? I am assuming that Text elements take up the space required. Neither limitLimit nor layoutPriority is helping so far.

So what can I do to prevent the Text from getting truncated?