A little of both. There's a really good article about how Spotify is changing the way people listen to music.
"But Spotify’s worth is more ephemeral. Its value—what makes it addictive for listeners, a necessity for artists, and a worthwhile investment for venture capitalists—lies in its algorithmic music discovery “products” and its ability to make the entire music industry conform to the new standards it sets. This means one thing: playlists are king, and particularly the ones curated by Spotify itself. An unprecedented amount of data (“skip rates” and “completion rates” determine whether a song survives) and “human-machine technology” are deployed to
quantify your tastes. This is what lies behind the “magic” of Spotify.
Spotify’s front page “Browse” screen presents a classic illusion of choice, a stream of genre and mood playlists, charts, new releases, and now podcasts and video. It all appears limitless, a function of the platform’s infinite supply,
but in reality it is tightly controlled by Spotify’s staff and dictated by the interests of major labels, brands, and other cash-rich businesses who have gamed the system. ... On Friday, there’s “New Music Friday,” a highly coveted and well trafficked playlist of mostly Top-40 content, thoroughly inaccessible to anyone but major labels."
https://thebaffler.com/salvos/the-problem-with-muzak-pelly
I listen to (free) internet radio the most, a couple of stations in particular.
I listen to a lot of music on Youtube without actually watching the video's.
And of course, my own personal collection on Itunes.
Offline I have CD's, vinyl, and even a few old cassettes.