Besides the advertisements, YouTube Premium APK also lets you download music from YouTube and listen to it later https://apkgenk.com/youtube-premium/. This app also supports audio separation and is a great alternative to the traditional YouTube app. One of the greatest benefits of YouTube Premium APK is that it doesn't require root access to install.
Another alternative to YouTube Premium is YouTube Vanced. The app uses the same API that the premium version does, and has some added features as well. It also supports multiple resolutions