Hmm I really didn't know much about Liberty Media, until I read this.

https://fair.org/home/the-podcast-conglomerate-the-media-wont-name/

All of these failures in clear reporting obscure the bigger picture. Mainstream coverage might leave you with the impression of a podcast landscape dominated by Spotify and Apple. But if we incorporate an understanding of corporate ownership, there are two main end-to-end podcast empires with a clear grip on the market at this point: Spotify and Liberty Media’s SiriusXM (FAIR.org, 4/21/21).