Axis Behavior

 NavigationStack {
            Text("FooBar")
                .toolbar {
                    ToolbarItem {
                        Button(role: .confirm, action: action)
                    }
                    ToolbarItem {
                        Button(role: .cancel, action: action)
                    }
                    .axisBehavior(.horizontalOnly)
                    ToolbarItem {
                        Button("Foo", action: action)
                    }
                    ToolbarItem {
                        Button("Bar", action: action)
                    }
                    .axisBehavior(.verticalPreferred)
                }
}