At this point, "material" and "dialectics" are memes rather than actual theoretical concepts in Chapo.chat discourse.

The idea that different relations to the means of production foster different mindsets, attitudes, and patterns of consumption isn't just compatible with Marxism, it's the very foundation of the Marxist understanding of culture.

Please, read Capital again. Even the Communist Manifesto.

Chapo, being an entertaining podcast, as opposed to a serious explanation of theory, will obviously be more likely to engage with the cultural elements than the actual definition and economic nature of PMC, though hopefully you already understand what the term means. Most Marxists should.

EDIT: They address this directly in the first 10 minutes.