Steam Reaches Huge New All-Time Player Records - GameSpot

For the first time, Steam reached 10 million concurrent in-game players, as well as 32 million concurrent online users.
Valve shares details on the future of the Steam Deck, Spider-Man 2 gets a smaller release window, and some new details on Starfield.

Counter-Strike: Global Offensive beats its all-time player record for

Steam Hits New Record with 10 Million Players In-Game at the Same

LOTRO Hits Highest Player Count In 10 Years - GameSpot

Apex Legends™ on Steam

Lost Ark Passes 1.3 Million Concurrents, Overtakes Cyberpunk 2077

Team Fortress 2, Which Was Released 16 Years Ago, Just Broke A

Massive Larian W (The number is only increasing) : r/BaldursGate3

Steam breaks all-time concurrent player record with 24.8 million

Steam Breaks Its Own Concurrent Record as 30 Million Users Were

Steam Reaches New Concurrent User Record - GameSpot