[SOLVED] Question about installing apps on Samsung S6 Lite ?

I posted this the day after purchase and it is driving me crazy..... first i had to google how to turn power off because unlike previous samsung tablets the short button fires up bixby.

This is my main problem: when you install an app it sometimes goes to where it should but most of the time you see the short cut for a few seconds then a message pops up to say open play store to use the app , this is just stupid !

How do i stop the short cuts disappearing , you have to open play store to use an app when this happens and to uninstall you have to go to settings/apps and search for it.

I had a very strange online chat with a samsung help desk , they say this is supposed to happen but that can't be right can it ?
 
Solution
problem solved by myself..... i found an app in a folder called game launcher , it was not in my previous tablet , all i did was disable the app and the games and apps went where i wanted them to.