播客 refers to both the podcast itself and (less commonly) the host. The host is more often called 主播 in livestream contexts but 播客主 or 主理人 for podcasts. Major Chinese podcast platforms include 小宇宙 and 喜马拉雅.
memory
Phonetic-semantic loan from English 'podcast': 播 (broadcast) + 客 (guest) — sounds like 'po-ke' and means 'broadcast guest', a happy match.