I must have changed a setting. Until recently, every time I install an app an icon for the app would appear on the last "page?" of apps. Now, when I install an app I do not get an icon anywhere. The app is definitely installed but I have to go to the "store," type the name of the app and hit "open." What setting did I change?
Just to clarify, when you refer to '...newly downloaded apps', is this a reference to apps you've installed from the Google Play Store, or is it a reference to manually installing apps using downloaded APK files? They're both ways to install apps and involve 'downloading' but there are fundamental differences involved.
-- If using the Play Store to install apps, the Apps menu on your phone will by default display them alphabetically. But if you're viewing your installed apps using the Play Store app itself instead, in the Library tab there are options on changing the list view (i.e. alphabetical or most recent)
-- If you install apps manually via APK files, the downloaded APK installer file will most likely be in your browser's Downloads folder and you then need to use something like a file manager app to view that folder and execute the APK installer to install the app onto your phone.
With both ways to install an app, some apps will automatically install an icon on one of your screens (might be the Home screen, or one of the secondary screens). But some apps don't, and then you just go to your Apps menu to drag-and-drop an icon for that app onto a chosen screen.