Yes, Kindle does now support epub. Annoyingly, it no longer supports mobi. I mean, I can still read all the mobi files on my ancient Kindle Keyboard and on the Kindle phone app, but any new book files have to be in epub format. I have a massive amount of mobi files, now have to convert them with Caliber if I want to add them to my Kindle.
I mostly use the ReadEra app on my phone, it does pretty much everything. My favourite feature is that you can control screen brightness by touch while reading, without ferreting around in settings.
If I Google my name it comes up with the victim of an unsolved murder in the US. Quite good for privacy, but it must discombobulate some old acquaintances.