Yes, you need to go into its settings and find what it calls the Danger Zone. In there, there's an option, "Release no-root mode permission", that will relinquish its device owner status and you can then uninstall it as normal. Before enabling its "
NoRoot" mode beforehand, run the application first and check its settings to make sure it's not crashing on your phone - the
only way on an unrooted phone to remove the device owner status, which must be done before you can uninstall, is through the application itself. (Ice Box, from the Play Store, is free and can also do this.)
Once GOS has been hidden by the program, you can run
pm disable-user --user 0 com.samsung.android.game.gos in an ADB shell and it shouldn't come back. On my phone, I know it's gone because the logcat keeps printing this whenever I switch to an application:
Code:
D SGM:GameManager: GameService does not exist