Thermal Pads for Phones

Hi guys, so right now I’m doing a screen repair on a Nexus 5X and I’ve realized that there is a thermal pad on the phone’s screen assembly (see picture). I don’t think I can transfer this pad without breaking it so I was wondering which thermal pad should I buy.

Is it fine to use pads that are for PCs eg. GPUS?

Should I be buying 0.5mm thickness or 1mm thickness?

Are AliExpress/eBay thermal pads fine to use.

eg. ++https://www.aliexpress.com/item/32716660...

++https://www.aliexpress.com/item/32839304...

Thanks.