Back in May, with Google News version 3.53, the Material You design philosophy began to be implementing by making the bottom navigation bar taller, giving it a slight hue, and adding a pill-shaped indicator for whatever tab you’re now viewing. At the time, this revamp was still in the early stages, as the Material You features did not yet adhere to the Android theme colors.
In this redesign, the page content is now separated from the header and navigation rail by staying enclosed in its own section with rounded corners on top. The shape of the search bar was also modified slightly, but the navigation rail is visible on tablets and phones if used in landscape orientation.
I happen to like the navigation rail, as I believe it makes the design cleaner and less cluttered. The ability to expand it to view more content per category highlights its flexibility and adaptability to any app it may get implemented on.