I've only experienced this on the iPhone X, after iOS 11. It happens in many apps, not just Google Maps, and constantly. For example, pinch-to-zoom in Adobe Lig

I've only experienced this on the iPhone X, after iOS 11. It happens in many apps, not just Google Maps, and constantly. For example, pinch-to-zoom in Adobe Lightroom often has it jump to a random place in the image. Since nobody seems to be talking about it (and my friends haven't encountered it) I've suspected it to be some kind of physical fault with the touch screen, or perhaps an interference issue with my screen protector, not necessarily a bug in iOS. But who knows.