No problem - thanks for the prompt response! I've attached an Instruments .trace capturing the hitch during interactive dismissal. It shows a clear spike in work, including ViewGraph.updateOutputs alongside UIKit layout work (UIView layoutSublayersOfLayer, _UIHostingView.layoutSubviews). Using LazyVStack mitigates the issue for the ScrollView repro - thank you, but I'm also seeing the same hitch on List-based screens where this doesn’t apply. Happy to provide any further info.

Hey, I've included a minimal reproducible example here: https://developer.apple.com/forums/thread/822769

Thanks for confirming! I haven't been able to improve the behaviour when presenting via .sheet or .fullScreenCover - the flash still occurs consistently there. For push navigation, I've had better results with a scrollable destination view (not the case in the MRE I shared). In that case, the transition largely masks the issue and it becomes barely noticeable, although there is still a brief flash on initial appearance. I'll update here if I come across anything that improves it further.