It has been revealed that with the new release of iOS 13 there comes a small but not so small problem for people who like multi-tasking – i.e. switching between apps frequently. Let’s say you have two apps open – you switch from the first app to second app and then go back to the first one – that apps reloads and then likely stops losing whatever you were doing. Unlike Android and Microsoft, iOS was never good with the multitasking feature.
“The issue appears to be down to memory management issues, with iOS not retaining the app’s information in memory long enough when it is sent to the background. This could be a bug, or it could be a feature and Apple being overly aggressive in maximizing the amount of RAM available for apps in the foreground so as to improve performance.”
Source Link: https://www.zdnet.com/article/ios-13-has-a-huge-bug-that-makes-me-want-to-dump-my-iphone-and-ipad/