Podcasts are made to be shared both within the Synth platform and externally.
Once you have created your Podcast, click on the share button.
A weblink for your podcast is automatically generated. You can share that immediately with anyone you want to listen to your Podcast.
To add participants, copy the invite message that includes weblink and a participation code.
See this article on embedding a podcast to Twitter, Medium and more.
Podcasts start as undiscoverable on Explore. You have the option of making it discoverable. This makes every Synth in your Podcast searchable on Explore by hashtag, title, author, etc.