In all versions of the App Store up until iOS 13, there has been an Update tab — a whole page of the store dedicated to showing you the latest updates to your installed apps. In iOS 13, that’s gone, replaced by Apple Arcade, whether you subscribe to the new gaming service or not.
So, how do you update your apps in iOS 13? And if you have auto-update switched on, then how do you even see which apps have been updated, and read their release notes? Fear not. Manual update is still there. It’s just hidden.