The article is talking about art in promo material.

Think about it: whenever you see a piece of production art featured in a social media post or a press release or a game announcement at a big televised showcase, all you ever see is the art. You never know who made it, whether it was created by an individual or a small team (or even a studio).

Heroic Game Launcher is pretty cool. It does game save sync with GOG games too.

It took some digging, but here’s a link to the actual paper: https://www.pnas.org/doi/10.1073/pnas.2304318120