Is Control: Ultimate Edition on Steam?

No. Control: Ultimate Edition is not distributed on Steam, so there is no Steam Charts or SteamDB player count for it. Its live popularity is tracked here via Twitch viewership instead.

When did Control: Ultimate Edition release?

Control: Ultimate Edition released on August 27, 2020.

Control: Ultimate Edition

Aug 27, 2020ShooterAdventureGoogle StadiaXbox Series X|S PlayStation 4visionOSPC (Microsoft Windows)

Control: Ultimate Edition — frequently asked questions

Is Control: Ultimate Edition on Steam?: No. Control: Ultimate Edition is not distributed on Steam, so there is no Steam Charts or SteamDB player count for it. Its live popularity is tracked here via Twitch viewership instead.
What platforms is Control: Ultimate Edition on?: Control: Ultimate Edition is available on Google Stadia, Xbox Series X|S, PlayStation 4, visionOS, PC (Microsoft Windows), iOS, PlayStation 5, Mac, Xbox One, Nintendo Switch.
When did Control: Ultimate Edition release?: Control: Ultimate Edition released on August 27, 2020.

About Control: Ultimate Edition

Control Ultimate Edition contains the main game and all previously released Expansions ("The Foundation" and "AWE") in one great value package. Winner of over 80 awards, Control is a visually stunning third-person action-adventure that will keep you on the edge of your seat.

Summary via IGDB.

Control: Ultimate Edition on Wikipedia

Control is a 2019 action-adventure game developed by Remedy Entertainment. It follows Jesse Faden, the new Director of the Federal Bureau of Control (FBC), a secret U.S. government agency that investigates and contains phenomena that violate the normal laws of reality. As Jesse, the player explores the Oldest House–the FBC's headquarters–and uses paranormal abilities and a shapeshifting gun known as the "Service Weapon" to combat the Hiss, a hostile, otherworldly entity that has invaded and corrupted the FBC. Players unlock new powers by locating Objects of Power, mundane objects imbued with energies from another dimension. The Oldest House has four sectors that can be explored at a nonlinear pace, and players are free to complete side quests and explore hidden areas.

Source: Wikipedia (text under CC BY-SA 4.0).