I'm extremely gentle with my baby (Fold), i never open it when i'm outside, and whenever i close the inner screen i always make sure there is no dust or grains. If you have long/sharp nails, you will damage the screen. Extreme cold temperatures are also a no-no.

There's a Reddit community for Pixel Fold users, and every day someone posts that their inner screen broke after only a couple months.

If you ruin the inner screen, they charge $1000+ to replace it. Until the price of Folding phones goes down, i don't really recommend this for the average user.