It can.
Books available from multiple retailers can be purchased or downloaded by readers who prefer Kindle, Apple Books, Barnes & Noble, Kobo, or other supported stores.
An Amazon-exclusive ebook can still perform very well, particularly when the book is free through KDP Select or available through Kindle Unlimited.
Retailer availability is one of several factors that can influence total reader response. Genre, price, cover, reviews, series position, and the book itself also matter.