TubeX is among the different options there are to download YouTube videos on an Android device. This application, that has been around for a few years now, allows for downloading content and play it without the need of an active internet connection.
Enjoy YouTube offline
With this application you can sign in to your YouTube user account and play any video of the platform but—and here’s the catch—you can also download them to your device. You can do it in different qualities as well as only extracting the sound. Besides, you can create playlists, save items to watch later and, ultimately, do everything you are used to doing in YouTube's official app.
That said, the app isn't exactly the most recent development when it comes to design... as we said earlier, it has been around for a few years now and it's possible that it doesn't work properly. So, if you try to download Rosalía's new video and you can't, try with one of the alternatives to TXD like TubeMate.