From the opinion piece:
Last year, I pointed out how many big publishers came crawlin’ back to Steam after trying their own things: EA, Activision, Microsoft. This year, for the first time ever, two Blizzard games released on Steam: Overwatch and Diablo 4.



Yes, which makes it even more puzzling that the competitors don’t even try to capitalize on the success of Steam Deck and publish their own store on Flathub, utilizing the very same FOSS technologies to make the games run.