Unfortunately, I am not that into art/lit/ag podcasts, but occasionally some of those topics are discussed on episodes of Stuff You Should Know. Given you are likely interested in learning about a bunch of random stuff, like many others here.

Stuff You Should Know (SYSK) - not every topic I am interested in, but they often cover some cool things and are good for an hour or so of educational content. Also they aren't always timely, so you can go back and listen to old episodes instead of only newly released ones.

Beyond that, excluding Bitcoin/Econ podcasts, I occasionally listen to True Crime/Comedy podcasts like Small Town Murder and Crime in Sports which are both hosted by comedians. May not be for everyone to laugh at haha.