Last year, Google launched Motion Stills app, which helped Live Photos users with many problems. With the new update, Motion Stills now allows users to customize the preview that automatically appears in the photo library. The intention is to better visualize what the photo contains. For example, when the preview is showing a blurred or unclear part of the Live Photo. Now users can browse Live Photos, select a new preview, and export it back to the native Photos app.
Source: MacRumors