With iOS development, Qt Creator's "Deploy" step takes considerably more time (2:35min with 4.13 beta1) than Xcode's "Installing" step (1:30min, same xcodeproj file, the .app is 1.3GB).
This phenomena can be seen by new devices such as
- iPad Pro 3rd gen 12.9"
- iPhone X, iPhone XS, iPhone 11 Pro Max
Both running iOS 13.6.
This doesn't happen with an older device e.g. iPad Pro 1st gen 12.9".