Is this a thing? I've been using a Pixel 9 Pro Fold for one full year now and my inner screen looks pretty flawless. I don't see a single scratch, and I've never used any kind of protector on the inside. This kind of sounds like a "sour grapes" excuse where a really good thing is presumed to suck only because you can't have it. Personally, as someone who isn't really interested in a full tablet, the foldable is really really nice.
I have an OG Pixel Fold and the inner screen is flawless. My iPhone 14 Pro screen is visibly scratched. The Fold replaced tablets and e readers for me.