@barbudo2005 I only listen to podcasts on my phone using Podcast Addict.
As podcasts are just audio files, mostly mp3 or m4a/ogg, and downloaded from a RSS url, the only way ads can be inserted is when the file is created or when the file is downloaded.
Unless your app does it, and in that case, well, I'd stop using that app.
I listen a lot to BBC podcasts, they have ads at the start, in my language, so I assume they detect my country from my IP and serve the file with ads for Norway. It's also possible they insert the ads on the fly during the download but that would be very processing expensive for popular podcasts. So I think they just have different copies of the files for different counties, with ads in the language.
Anyway, easy to skip such ads by just fast forwarding a bit.