I’ve always heard that they didn’t. Just checked about it and they started to support it in 2022. But it’s still not native, it gets converted to their proprietary format.

Well there’s a key difference, Kobo allows epub. I don’t think they could legally remove it from devices already on the market?

That’s why I avoided Kindle and picked a Kobo. Sure you can remove DRMs from the books you’ve bought. But at some point they could block you from doing that. They can change anything at anytime and there’s nothing you can do about it.