Given the amount of time I spend participating in the podcast this way, I would rather say that I sometimes pause my thoughts for a little podcast rather than the opposite
I dont do this as often as the meme implies but I do stop and talk things over out loud sometimes, either to grapple with what I just heard or to follow a tangent thought to its conclusion before the podcast continues
If you are not social and want to be, this is actually a good way to practice conversations. The idea is to pretend to be one side of a conversation and try to mimic what a person would say in a situation. It's more practical with planned conversations, like TV shoes because those conversations are designed to lead to something. Casual podcast conversations may have more conversation threads that may end abruptly.
I met a family member's kid once who would both narrate himself while playing Minecraft, and have full conversations with whatever youtuber he was watching on a second screen (who was also narrating himself playing Minecraft)
I also met an old lady with dementia once who would have full conversations and arguments with people on TV.
I'm not sure if this phenomenon has a name, but it's something currently afflicting both the silent generation and generation alpha.
There is a picture where a boy sits next to a commercial with talking people and first you think he is part of the group but then you realize he's sitting next to the tv