There are various podcast apps where you can download the podcast to your phone. These apps generally allow audio to be sped up, rewound easily, etc, and might be suitable for your needs.
The RSS feed that google podcasts and others are using is hosted on this website, which should also let you download episodes. I think this URL is less likely to stop working (precisely because I normally don’t think about or advertise this website).
Notes:
There are various podcast apps where you can download the podcast to your phone. These apps generally allow audio to be sped up, rewound easily, etc, and might be suitable for your needs.
The RSS feed that google podcasts and others are using is hosted on this website, which should also let you download episodes. I think this URL is less likely to stop working (precisely because I normally don’t think about or advertise this website).