It’s been a while since I used it but from what I recall, yes

Edit:

I do use calibre so I guess that was what I was doing:

Yes, Kindle now supports EPUB, but with some limitations:

Direct EPUB Support: Amazon updated its Send-to-Kindle service to allow EPUB files, meaning you can send an EPUB file via email or the Send to Kindle app, and it will be converted into a Kindle-compatible format.

No Native EPUB Reading: Kindle devices do not natively read EPUB files. They are automatically converted to Amazon’s AZW3 or KFX format.

Workaround for Sideloading: If you want to transfer EPUB files manually, you can use Calibre to convert them to MOBI or AZW3 before transferring them via USB.

Let me know if you need help with any of these steps!