Using most recent version with Drupal 11 as of July 2025:
With this module the information in the "Channel" part of the rss2 feed is configured with the View Format: 'Podcast RSS Feed' Settings.
Most of the settings require referencing a field, but a very few like Copyright has an OPTION allowing me to type value in settings and 'iTunes Type' has a selection not field reference.
It seems strange to require referencing in FIELDS for most of the format settings because most of these values are static.
I think the work around for this is creating a lot of unincluded custom text fields to reference for the settings. This approach does seems awkward, it this the way it was intended for setting up the channel tags?