Spotify (the app) is Spotify's (company) product.
Music is the musician's product.
Spotify's (the company) product (the app) is a music delivery system.
People who have a Spotify (the app) account are Spotify's users.
People who listen to music are the artist's listeners.
Someone signed in to Spotify but who never played anything is a user but not a listener.
Someone listening to a song being played on Spotify but without a spotify user account is a listener but not a user.
Going to a meeting and being pedantic about such details shows nothing but your own lack of understanding. And to be honest, a complete lack of maturity as well.