Chosen Solution

Just wondering because there does not seem to be any answer and there is no way to buy a replacement on Steam.

Their’s no guides on iFixit’s Steam Deck page, but their is an article that details the device’s teardown, and it does talk about how easy it is to replace the screen. I suggest taking a look at it here.

You’re looking for a replacement screen for your Steam Deck? –> https://www.ifixit.com/Store/Game-Consol