Protection stickers & cases

Hello.I was just wondering what options as regard full body stickers or very thin cases (even screen protectors) we have on our kindle.Can also someone tell if dimensions on all 6" kindles both paperwhite & basic are the same? I personally own the KT4 model (basic 10th gen 2019 model)

https://shopee.sg/Sticker-For-Kindle...89.16810185418