https://www.amazon.com/gp/help/custo...f_=as_li_ss_tl
https://goodereader.com/blog/kindle/...b-in-late-2022
Moderator Notice
Clarification: Amazon now accept ePubs for their email-to-kindle process, and later in 2022 their "Send To Kindle" programs will be updated to accept ePubs. There has been no announcement about Kindles being able to display ePubs natively.