What? Its about 3-5 years for a AAA game and you ideally pipeline things such that a studio is shipping somewhat frequently. Almost no one can front a decade worth of development without shipping anything.

Where are you getting a decade from? Consoles ship more often then that.

How many games has Valve shipped in the last decade? Square Enix? Bethesda? Epic?

Valve: Underlords, Artifact, Half-life: Alyx, CS 2

Square Enix: so so many but at least a few FF14 expansions, FF15, Nier: Automata, Dragon Quest XI, Octopath Traveler, Kingdom Hearts III, Final Fantasy 16, Final Fantasy VII Rebirth

Bethesda: The Elder Scrolls Online, Fallout 4, Fallout 76, Starfield

Epic: Robo Recall, Fornite.

Epic cancelled Paragon and Unreal Tournament and Fortnite is a live service game where they're constantly shipping content so its harder to define single releases but they have new money coming in from new content.

And these are only from the main studio, not the dozens of games published by these entities.

These are separate internal teams, not one team shipping all these games.

Your square list, for example, crosses 8 different studios.

My original question was poorly worded; I meant how many games -per studio- are being shipped by these big cos?

There's plenty of examples there of multiple games per studio. Hard to get public into per "team". Teams are mutable within a studio and devs roll off and onto other teams.

Arguably teams are tied to and only ever ship a single game so I'm not really sure what you're arguing at this point.