Podcasts do not appear out of the blue on Apple Podcasts, Spotify, Podcast Addicts and Google Podcasts. All these platforms use an RSS feed, which is like the lifeline of your podcast. This feed contains the main details of your show, i.e., its URL, its description, its cover, etc. Therefore, any time a new episode is published, it appears automatically on the playing software to which the RSS feed has been sent.