If you still need an APK for an older device, you can find historical versions on third-party repositories like APKMirror .
: If you have an existing app that still opens but crashes, try going to Settings > Apps > YouTube > Storage and selecting Clear Cache Clear Data How to Install Legacy APKs
This report covers the current status, installation challenges, and alternative solutions for running YouTube on devices using Android 4.4.4 (KitKat). Current Support Status
Because you aren't using the Play Store, you must allow your phone to install apps from other sources.
October 26, 2023 | Category: Android Legacy Support
If you want to keep using your legacy device for video, these alternatives are more reliable than hunting for an old APK: Mobile Browser (Recommended) : Use a lightweight browser like Opera Mini or the built-in Chrome app to visit m.youtube.com