>I ended up just setting up an endpoint that reverse-proxies the RSS feed served by the platform on my own domain.
I did the same thing and eventually felt like it was too complicated to maintain a service just for that, so I switched to Bunny CDN and use a custom domain on Bunny to sit in front of the podcast host's RSS feed (just the RSS, not the actual episodes).
It works pretty well, but sometimes the caching does things I don't expect and new episodes don't appear in my player until I manually flush the cache on Bunny. I suspect I could do it more smoothly if I experimented more with Bunny's settings.
I did the same thing and eventually felt like it was too complicated to maintain a service just for that, so I switched to Bunny CDN and use a custom domain on Bunny to sit in front of the podcast host's RSS feed (just the RSS, not the actual episodes).
It works pretty well, but sometimes the caching does things I don't expect and new episodes don't appear in my player until I manually flush the cache on Bunny. I suspect I could do it more smoothly if I experimented more with Bunny's settings.