Installing the on a device running Android 8.1.0 (Oreo) is common for "portable" or specialized devices like handheld consoles, tablets, or those with custom ROMs that lack pre-installed Google services. Quick Setup Guide
First, from Google. The Play Store is a system app designed to integrate deeply with Android’s framework. What users often refer to as a “portable APK” is simply the standard Play Store APK file extracted from a device or sourced from a trusted mirror, which can be manually installed on compatible Android devices—but it is not “portable” in the Windows sense (run from external storage without installation).
Manually installing the Play Store is a straightforward process, but it requires enabling specific security permissions. Google Play Store Old Versions (All versions)
Before you install (precautions)