if you want general history, there’s a relatively comprehensive docu-series produced by CCTV6 from 2013 called 中国通史 General History of China (100 episodes). However it’s in Mandarin Chinese, so not very podcast-able if you don’t understand Mandarin, but there are english subs available (on a quick search, and a brief glance they look decent) and IMO the artifacts and depictions are worth the watch. If anything it might be a good launching point if you wanted to look into more specific topics, for example, philosophy which is often intertwined with religion and civics in Chinese history, or historic literature.
EDIT: found an english dub on youtube ^^ just search “general history of china eng dub”
hello (⊙ω⊙)7 new in town.