Why do running applications reload after waking up from hibernation?

Question

Android

Good evening.
There is Asus ZenFone ZA550KL, Android 8.1. Everything works fine, but there is a problem: when you have some application or game running, and the smartphone goes into sleep mode (blocked), after unlocking the application opens again. Those. it looks like the OS closed it, but marked it as "open" in order to open it after unlocking.
Before that, there was a Samsung Galaxy, there was no such lewdness (Android 4).
How to treat? Who faced? Is the problem in the firmware from Asus or in the OS itself?

Answer 1

This is fine