Now prompts appear under a Frame named "SafeAreaFrame" under a ScreenGui named "FoundationOverlay" inside the CoreGui. But there seems to be multiple FoundationOverlay's and the overlay frame inside SafeAreaFrame only exists if there's a promp active. I'm not sure if there's any other prompts that would go there because I haven't tested anything else.
game:GetService("CoreGui").FoundationOverlay.SafeAreaFrame

Now prompts appear under a
Framenamed"SafeAreaFrame"under aScreenGuinamed"FoundationOverlay"inside theCoreGui. But there seems to be multipleFoundationOverlay's and the overlay frame insideSafeAreaFrameonly exists if there's a promp active. I'm not sure if there's any other prompts that would go there because I haven't tested anything else.