This a feature of Samsung’s One UI 4.1. Basically its uses your Storage Space to create Virtual Ram in order to increase your Ram So, that applications can work properly without any issue.
No, it will only use your 2,4,6 and 8GB from Phone Storage based how much Virtual Ram you want. Nothing else. This is very cool feature for those who had problems using the multiple application or those who had less Ram. Like midranges and Budget devices.
Farhan has explained quite well... it uses storage as memory FOR BACKGROUND apps which aren't being used to boost phone speed and making space for REAL ram to work properly
