Even if a modded APK works initially, it lacks automatic updates. You will never receive security patches or compatibility fixes for YouTube’s changing API. Within weeks, the download features break.
If you are looking for the software or for developers seeking open-source alternatives, here is a breakdown of the current landscape: snaptube github
Snaptube is a popular third-party video downloading application for the Android operating system. Unlike official apps that restrict offline viewing to their own walled gardens (like YouTube Premium), Snaptube allows users to rip video and audio files directly to their device storage in various resolutions and formats. Even if a modded APK works initially, it