(1) Helpful context, thanks! Discussed 2 weeks ago:

California new law forces digital stores to admit you're just licensing content

https://news.ycombinator.com/item?id=41663432 - Sep 2024 (11 comments)

(2) There is also a submission from today related to this article (though TFA and this other article are both rather light and shallow at ~1 paragraph each):

Steam now tells gamers up front that they're buying a license, not a game (engadget.com)

https://news.ycombinator.com/item?id=41809193 (15 comments)

(3) Finally, a marginally more informative article from Ars:

https://arstechnica.com/gaming/2024/10/steam-now-reminds-you...

Isn't that discussed in the article?

Yes, just like it says in the article.

and so is GOG

You didn't even read the article didn't you?