The key takeaway is . You need API 23. You need ARM or ARM64 depending on your CPU. And you need to flash it immediately after your ROM.
Android 6.0.1 Marshmallow. Released in late 2015, it is now considered "ancient history" in the fast-paced world of mobile operating systems. However, millions of devices—from the Samsung Galaxy S5 and Note 4 to the LG G4 and countless budget tablets—still run this version perfectly well. For many users, Marshmallow represents a sweet spot: stable, memory-efficient, and free from the bloat of newer versions. gapps android 6.0.1
Before you download any GApps file, join the XDA forum thread for your specific device and look for the "Last updated: 2021" post. The community has already verified the last working GApps build. Do not trust random "GApps installer APKs" from the web—they are almost always malware. The key takeaway is
Introduction: The Android Paradox