I assume so. Spotify has a feature somewhat like this, but I keep it turned off because I find it annoying and distracting. It’s a bit silly to try to justify a huge move like this based on such a trivial feature, in my opinion.
> Play videos on your mobile device while using other apps or when your screen is off. Background play is available on YouTube, YouTube Music, and YouTube Kids mobile apps (if these apps are available in your location).
They only allowed background play on Youtube with a subscription.
Friend of mine who isn't me still downloads MP3s on torrents and has no cloud subscriptions. I'm sure he's smug about this.