I am keep trying to make space on my kids tablet and it keeps redownloading apps I delete.

What’s a sure fire easy way to disable this and also delete what’s in the app?

I was gifted a kindle book a couple of weeks ago, so I opened my rarely used kindle 3 to download it. Because I could not connect and I was unaware that amazon discontinued support, I did a hard reset, causing my content to vanish. Now I am running KOreader on the K3. Today, I booted a Fire HD8 that I also have not used for a couple of years.

I've been reading library books with Libby on an android tablet so I was happy to see my content on the Fire's kindle app. I turned off the wifi once I saw the content, thinking maybe I'll prevent an update from screwing me.

Now my question - I'd like to download my amazon content to my linux pc and ultimately transfer it to the K3 as a matter of principle. Is this at all possible?

Should I turn wifi on the Fire and presumeably let it update the OS or firmware automatically or is that something I have to initiate?

Finally, I'm the original owner of the Kindle 3. Shouldn't I have received some sort of notice from Amazon that they planned to discontinue support?