Ask HN: What's it like transitioning from SWE to PM?

I have been burnt out on software engineering for a little while now. I'm decent at it but I no longer seem to enjoy like I once did. I would like to stay in the software industry and have read that it's somewhat common for engineers to become Product Managers. I'm curious to hear how it feels going from being a Software Engineer to a Product Manager from an engineer's perspective.

Do you like writing docs? Was is hard making the transition? What was the biggest surprise?