Comment by pzo

Go to app store on your iPhone, swipe refresh and see how heavy all those native SwfitUI apps are and we are talking only about app updates. You will barely find app less than 100MB and few that are even 300MB+. Didn't check if they are also as heavy on desktop. So that's at least regarding app size on environment impact native apps at least using SwiftUI not making it better - I would say they make it even worse since javascript apps can just autoupdate non native part without downloading whole bundle (and I think this is what slack and discord doing for some updates). SwiftUI apps are also not as fast as UIKit apps not sure about memory performance.

In practise I will take any JetBrains IDE or VSCode over native XCode IDE anytime - XCode is such a big heavy hog.