I want to use my Google Home more but don't because of the bass. Its been a year and the most basic features aren't even out there yet. (I should have known better)
I started as a trainer/implementation person- and ended up doing so at a startup. The CEO was the product manager when I started - but when the time came to make that into a full time role, I had a good grasp of the customers and what they wanted (due to being on the front lines) and I got the job. Product Managers can come from anywhere - get in the door as a support person and work your way up. The key is understanding what customers want.
Many companies have Product Analysts or Associate Product Manager positions that feed into Product Manager positions.
Product Management can be relentless. You need to know everything that is going everywhere, and react to it to accomplish your goals.