If you ever use the kindle without a case or cover you can buy a film screen protector. I got this as an example
TiMOVO Screen Protector Compatible with Kindle Paperwhite 6.8-Inch(11th Generation,2021) and Kindle Paperwhite Signature Edition, Anti-Glare Scratch Resistant PET Screen Film Protector, Matte
https://www.amazon.ca/dp/B0BV6FYY59?...R4F9P6CXNJ1N4E
On my older Kindle Paperwhite, without a screen protector, I got deep scratches on the screen.