We know how important it is to maintain control of your RSS feed and your subscribers. If you create your podcast with RSS.com and activate a redirect from your old Anchor rss feed to your new rss.com feed you will not lose any subscribers.
Important: If you have multiple podcasts on your Anchor account you will need to individually redirect each feed.
Log into your Anchor account on the web
Click "Podcast availability" in the top right of your screen
Scroll down and look for the "RSS Distribution" section
Click on the button "Yes, redirect my podcast"