head to head
Grand Theft Auto V asks more than Untitled Goose Game, and the gap is execution.

Execution · Practiced Mastery
Sandbox crime playground spanning shooting, driving, and a persistent online economy.

Optimization · Practiced Mastery
A slapstick stealth-puzzle game about being a horrible goose.
Grand Theft Auto V leans Execution (Practiced Mastery); Untitled Goose Game leans Optimization (Practiced Mastery).
Grand Theft Auto V leans clearly harder on execution.
Grand Theft Auto V
Driving and shooting demand decent inputs.
Untitled Goose Game
Light stealth timing, forgiving controls.
Grand Theft Auto V leans clearly harder on reads.
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Untitled Goose Game
NPCs follow fixed patterns.
Grand Theft Auto V leans a little harder on variance, though the gap is small.
Grand Theft Auto V
Some mission and lobby randomness.
Untitled Goose Game
Minor randomness in NPC routines.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto V
Heists, money loops, builds learnable.
Untitled Goose Game
Puzzle list rewards efficient routing.
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.