The first was well received but died off the rest of auto-battlers, the second was terrible but is being reworked, and the third was critically acclaimed and the probably the most important VR game released besides BeatSaber. I know you said not counting VR but I feel like skipping Half-Life:Alyx, a game in a well beloved franchise that was very highly rated, is a little disingenuous

Besides that they've also: Trialed Linux-based Steam Machines Greatly contributed to Linux gaming through Proton Tested out two unique hardware systems (Steam controllers and Steam link)

Outside of them being essentially the biggest and most important game distribution service, as well as helping devs with any distrbution, multiplayer, DLC, etc services that they need.

So I'd say it's a toss-up between whether that would benefit Google or not.