Thanks for the follow-up. These types of anec-data are the best part of HN.
> It felt like magic when it worked, all those VStack HStack nestings
I know the feeling from Qt. I think Gtk and many other GUI toolkits use the equivalent of VStack and HStack to make resizable GUIs. Some GUI toolkits try to avoid this problem by using a grid layout, but it is more rare.
EDIT
> made me seriously doubt whether I’d build a big app with SwiftUI
From your experience, what GUI toolkit would you prefer? And, it would help to know what is your target UI platform.