IMO
Tesmanian Liners and pet seat protector
Amazon jackpads and screen protectors
I don't have white seats, but I hear they have a coating, and others post showing stains from jeans so idk.
https://www.tesmanian.com/collections/tesla-model-y-accessories
https://www.amazon.com/gp/product/B07KP18S52/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1