How to stop Android from automatically slapping new app icons on your homescreens
Well, apps belong to the App Drawer, said the screen purist, regardless of what all Chinese manufacturer overlays are trying to force on them, and started searching for a way to prevent new app icons multiplying on the homescreens like there is no tomorrow. Here is what you need to do, according to their findings:
1. Start the Play Store app on your handset, and hit the context menu section (that's the three-dash thingy top left);
2. From there, scroll down a bit, and choose the Settings option;
3. You should now be seeing the "Add icon to Home screen" checkbox, which is marked by default;
4. Uncheck it, and app icons will only go where they belong after installing a new app - in the drawer, ready to be taken front and center only if you decide to do so.