This article is a very good representation of how I see the PM landscape right now as well:
After a brief period where PMs were expected to become engineers themselves, the engineering team is moving back to owning most implementation mechanics. PM increasingly owns what should happen, why, the principles governing a product’s behavior, and how success should be evaluated. There are debates around communicating that vision between PRD’s vs. prototypes, but that debate hides the fact that the eval is becoming the core product artifact. The initial strategy doc or PRD is re-emerging as an artifact for agents as well as humans to understand what we intended to build. The eval defines whether we did or not.