There are generally three reasons someone searches for a specific, older "Full" APK:
Official YouTube version numbers follow a pattern like 18.23.35 or 19.01.33. The number does not match any official release on the Google Play Store or APKMirror. This strongly suggests one of the following:
: Addressed common crash issues and reduced frame drops on various hardware platforms.
on devices without official Play Store access (like some Fire TV sticks).
