Did you know you can subscribe to PeerTube channels on ordinary podcasting apps such as AntennaPod, Apple Podcasts etc? Here's how:
1. Go to the PeerTube channel
2. Click "Subscribe"
3. Long-press or right-click "Subscribe via RSS" and select "Copy link"
4. Paste this link into your podcast app's section for following podcasts through URLs (for example on Apple Podcasts this is at Library > ⋯ > Follow show by URL)
There's lots more info at:
https://fedi.tips/how-to-subscribe-to-peertube-channels-through-podcasting-apps