This designation represents a specific build of the official YouTube application for Android operating systems. It is a package file, indicated by the “.apk” extension, designed for devices with a particular hardware architecture (arm64-v8a). The numerical string “20.13.41” denotes the specific version number of the YouTube application. This allows users to identify and, if desired, install a particular iteration of the software.
Access to specific versions of applications allows users with older devices or those experiencing compatibility issues with the latest updates to maintain functionality. It can also be useful in situations where a specific feature or functionality has been changed or removed in newer versions and the user prefers the earlier implementation. Historically, such specific application versions were crucial for sideloading apps onto Android devices, especially before widespread adoption of official app stores.