[cxr]

> Would be great to have a way again to simply share links to podcast-episodes which work regardless of the used app.

There's nothing stopping this from happening today except for app developers not putting any UI for it in their apps. HTTP has a Link header (which servers should already be sending, whether apps actually do anything with it or not), RSS has a field to link to pages, HTML has `link` elements (and the `rel` attribute for `a` elements) to link back to the file, and audio file containers of course let people include metadata.

So linking to a podcast episode is as simple in principle as giving someone a URL directly to the file or the associated episode page. (It's a URL. That's it. Done.) It's getting application authors and server operators to do their part, though, which is another matter.