Since you are referring to Android 6.0.1 (Marshmallow), I assume by "interesting paper" you might mean an "interesting wrapper" (a common typo for modified apps), or perhaps you are looking for a research paper regarding the security/architecture of that specific Android version.
Firefox for Android (final Marshmallow version: 68.11.0) + uBlock Origin extension = better YouTube experience than any native APK. Play videos in desktop mode. Background play via "Video Background Play Fix" add-on. No ads. No shorts. No forced updates.
YouTube Go was a lightweight version for low-end phones and old Android versions (5.0+). Google discontinued it in August 2023, but the last APK still runs on Android 6.0.1. youtube apk android 6.0.1
Current Performance: Users frequently report that even the last compatible APKs now show a "Switch to YouTube.com" prompt or a "400 Error," as Google has disabled the back-end services for these older versions. App Features (Legacy) If you manage to run a legacy version, you can expect:
Only if you understand the risks. An old APK from 2021 has known security vulnerabilities. Your Google account (including passwords, search history, and emails) could be exposed if you install a malicious version. Since you are referring to Android 6
Vanced was a patched APK that gave you:
Alternative approach: Use YouTube ReVanced or NewPipe (lightweight clients that still support API 23). Background play via "Video Background Play Fix" add-on
But one morning in 2023, you open the Google Play Store to update YouTube. The page loads, but the "Install" button is grayed out. A small line of text reads: "Your device is no longer supported for this version."