SwiftUI Tab Bar inconsistent BackgroundColor

Question

Here's my view

struct StackCheck: View {
    var rows = [Int](0...20)
    
    var body: some View {
        TabView {
            List {
                ForEach(rows, id: \.self) { _ in
                    Text("Hello, World!")
                }
            }
            .tabItem {
                Text("Words")
            }
            
            ZStack {
                Color.blue.opacity(0.4)
                    .edgesIgnoringSafeArea(.all)
                Text("Check")
            }
            .tabItem {
                Text("Check")
            }
        }
    }
}

When i tap on List view and scroll to the bottom, the Tab Bar background becomes transparent.

If after that i tap on Check View, the Tab Bar background is still absolutely transparent, which makes tab bar labels hard to read.

However, if i don't scroll to the bottom of the List View, tab bar background has a semitrasparent color and a divider on top.

If then i switch to Check View, tab bar labels are easy to read.

So my question is: How do i modify tab bar, so it doestn't change it's background opacity?

I'd really like it to have this divider and semitransparent background every time.