I was browsing the new fiction ebook arrivals at a library, and the difference between epub and kindle seemed rather large: 442 new fiction books, 442 epub, 114 Kindle.
I had seen slight differences in the past, but this seems excessive.
Here is the first two book that are epub only:
https://www.amazon.com/Judas-Goat-Po.../dp/1953534643
https://www.amazon.com/Save-Me-Oppos.../dp/B0BBSWC4MN
Checking another library, there are 188 epub and 121 kindle new fiction arrivals.
Any ideas on why there is a large difference?