Podcasting is coming down from a sugar high. In 2018, slightly more than 200,000 new podcasts started uploading episodes online. A year later, 337,000 shows began airing according to Listen Notes, a podcast search engine. Then the pandemic hit and 1 million podcasts popped up worldwide in 2020.
https://www.theage.com.au/national/is-the-podcast-bubble-starting-to-burst-20230525-p5db93.html