Earlier quoted context omitted.
Oh my…I’ll have to ask, I bet they did. Unreal.
So far, Kobos are the way better option in my opinion. No ads, and it's much easier to add your own books. It's (currently) a much more open system. But, not without fault. They've shut down some older readers for no good reason.
The readers work perfectly fine without an account and the Poke 5 I have is a fair bit smaller than the last Kindle I had with the same size screen.
It runs Android and I also use Termux plus a bluetooth keyboard with it for a rather nice minimal writing experience.