There’s a lot of deeper calculation to consider there. Is it a full production show, or someone’s YouTube project? Is the podcast a single person, or many? If it’s many are they in the same location? How much electricity is used to deliver your chosen medium to you?
Ultimately though none of that matters. If a podcast is what entertains you and makes your human condition livable that doesn’t mean it does the same for Jack.
If electricity is such an issue than you using whatever electronic device to relay data to a server where my electronic device retrieved it from another server with who knows how many hops in between each for both of us is not a good use of your time.
If instead, as I suspect, you see value in harm reduction you need to realize that not everyone can reduce harm in the same way.
Right now, somewhere, someone is getting by because they can’t wait for the next part of their favorite TV show or movie. Chances are you may even know one such person and not realize it. If that’s gone their tenuous grasp on life may slip away. Even if you are ok with that, and I hope you’re not, what positive impacts might that person have had that they will be unable to because they just can’t take it anymore.
Life is hard. Stop trying to make people feel guilty for not living it the same way as you.