It would truly be helpful if the backupfacility, allowed for groupings of Apps to be restored. Its really frustrating when purchasing a new phone, or even to carry out a restore, the apps have to re- organised and sorted again on the home screens.
I back up my phone via Samsung in settings immediately prior to setting up a new phone and when I restore from the Samsung back up I created it restores all of the grouped and stacked apps on my home screens exactly how they were on my previous phone. I don't think backing up via Google does the same thing. The only things missing are usually a handful of apps and shortcuts I have installed on the home screen