Once installed, it is highly recommended to restart your phone to ensure the new (older) version of the Play Store initializes correctly. Important Safety Note
: For modern devices, it is recommended to keep the Play Store up to date by navigating to Settings > About > Update Play Store within the app.
It unified the app store with Google Play Books, Movies, and Music, creating a single digital storefront.
If you are exploring this for a specific device, let me know which version of Android it is running, and I can give you more tailored advice on compatibility.
CNET How To - Install the Google Play store on any Android device 16 Oct 2015 —
Clear the app cache. Go to Settings > Apps > Google Play Store , and tap Clear Data . If the error persists, you may need to install updated Google Play Services or use a web browser to download apps instead. Immediate Auto-Updates
: You can find this specific version on repositories like APKMirror .