Hi Sashin (npub1hge…us7k)
I'm afraid that we won't implement that. The files are intended to be internal and are named in a way that it'll never create issues with the operating system (i.e. Android). See for example:
https://forum.antennapod.org/t/filenames-umlauts-ss-replaced-with-digits-e-g-weiss-wei-23535/7309/3
https://github.com/AntennaPod/AntennaPod/issues/7923#issuecomment-3165206628
https://forum.antennapod.org/t/problem-renaming-files/1750
^K