I’d love to tell you it’s a decent privacy option, but I don’t think it is. The up to date ones ship with play store enabled, which means play services as well, and there’s not any way to unlock the bootloader as far as I’m aware (I’ve looked semi-recently).

I just can’t find any options that aren’t “never connect it to a network” that have functionality and respect privacy, so I’ve prioritized actually working. After having Android, I can’t personally really consider kindle or kobo devices as functional any more. They just don’t do enough for me.