As of iOS 13, Apple is deprecating 3D Touch in favor of a long press that will bring up what it calls a “Context Menu”. Unfortunately, there are numerous places system-wide where the VoiceOver rotor contains a “Show Context Menu” action on a UI element which does not support this feature.
A prime example is the App Store, where many UI elements will report that you can double-tap to show the Context Menu, but where a double-tap does nothing.