Anyone here work on Amazon Kindle iOS app?

The Kindle iPhone app has changed greatly, going from what felt like a quiet, efficient clone of the physical Kindle to a something bigger and less pleasant. After many years of happiness, to this user it now feels like an unstable, many-click portal to the larger platform. For example, instad of resuming where you were reading, it always goes back to "for you" page, with "your library" as an afterthought in the background. It literally takes 3 clicks to get back to the book you were reading, with various zoomed-in promotions. It uses lots of resources and often locks up.

The question is: if you were an engineer who worked on this, are there some good reasons why it is this way? Am I missing something in Settings to get it back to be like it was? What happened to Kindle iOS app?

[While I originally started writign this earlier, John Carmack asked something similar recently on X].