head to head
Not a Hero asks more than Grand Theft Auto: San Andreas, and the gap is execution.

Optimization · Practiced Mastery
A sprawling open-world crime epic with RPG-style character stats across a whole state.

Execution · Practiced Mastery
Twitchy cover-shooter rooms that reward drilled execution and memorised routes.
Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery); Not a Hero leans Execution (Practiced Mastery).
Not a Hero leans clearly harder on execution.
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Not a Hero
Slide-cancels, snap cover and reload timing decide every room
Not a Hero leans a little harder on reads, though the gap is small.
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
Not a Hero
Enemies follow fixed behaviours, nothing adapts to you
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
Not a Hero
Minor enemy spawn jitter, levels otherwise deterministic
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Grand Theft Auto: San Andreas
Stats, gym, weapon skill, and routes reward systematic play
Not a Hero
Learning room layouts and routing kills enables full-clear runs
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.