Google Maps is implementing a new user interface that features a sheets-first design, allowing app elements to appear as sheets while keeping the map view visible. This redesign started with the Explore tab on Android last summer and is now being applied to the You and Contribute buttons, which display a draggable sheet that can cover most or part of the screen. The update aims to enhance aesthetics and improve navigation while maintaining familiar features in the same locations. User feedback on the changes is encouraged as the update continues to roll out.