What is Performance Max, and should I be using it?

Performance Max (PMax) is Google's fully automated campaign type that serves ads across Search, Display, YouTube, Gmail, and Maps from a single campaign. It performs well when fed strong audience signals and creative assets. It's not a replacement for standard Search campaigns in all cases — many advertisers run both in parallel, using Search for high-intent branded and exact-match terms while PMax handles discovery and broader reach.