Are You Using Amazon or Udemy?

I think the analytics, the insights should be on KDP on Amazon's publishing platform. And it's also surprisingly hard to do because apparently Amazon is just not willing to share this information other than you buying your own book and reading it on your device. So I'm fully aware of the pros and cons of being part of a marketplace versus doing it on your own. However, going back to the initial premise that I've got a full time job, full time family, and then X amount of time, which is free,. I could follow one of two things: Move everything to my own platform, maybe use Teachable, Kajabi, whatever, and then heavily focus on the marketing