The folders in Google's stock Google Now Launcher are currently restricted to just 16 entries (four rows of four). That's going to change very soon. The version of GNL that ships with the Android M preview has folders that automatically paginate when you add more than 16 apps. How many pages can you have? I'm not sure as I have yet to hit the limit.
The folders look the same as before when you've got a single page of apps, but as soon as you bump it over to the second page, the folder name shifts to the left and a page indicator appears in the lower right.Read More
The Updated Google Now Launcher In Android M Has Horizontally Scrollable Folders was written by the awesome team at Android Police.