Downloading YouTube Vanced is no longer supported officially, and you have to depend on third-party websites. To download it, first search for a reliable website that provides you with the latest version of YouTube Vanced APK. Be careful as some websites may contain dangerous files. After you download it, navigate to your device settings and allow "Install from Unknown Sources." If you wish to sign in to your Google account, then download and install MicroG too. Once installed, open the app and discover features such as ad-blocking, background play, and customizations. Nevertheless, as Vanced is no longer being updated, then ReVanced or YouTube Premium would be a better bet for a more reliable experience.