Thank you for this!
As a designer, I like to create things according to the standards of the platform. I even researched an image dimension guide for Medium, but found nothing substantial. The fact that Medium has more aspect ratios than I originally thought is incredibly frustrating from a UX perspective.
I understand needing to have a responsive site with adaptable photos, but the quantity you’ve shown is mind-boggling. I would love for a Medium Staff Design member to explain why they decided to do things this way, and how they manage to keep track of it all.