head to head
Ace Combat 7: Skies Unknown asks more than Grand Theft Auto: San Andreas, and the gap is execution.

Execution · Practiced Mastery
A modern arcade flight game of high-speed dogfights, drones, and dramatic canyon runs.

Optimization · Practiced Mastery
A sprawling open-world crime epic with RPG-style character stats across a whole state.
Ace Combat 7: Skies Unknown leans Execution (Practiced Mastery); Grand Theft Auto: San Andreas leans Optimization (Practiced Mastery).
Ace Combat 7: Skies Unknown leans clearly harder on execution.
Ace Combat 7: Skies Unknown
Tight dogfighting and missile-dodge timing
Grand Theft Auto: San Andreas
Flying school and drive-bys need decent hands
Ace Combat 7: Skies Unknown leans clearly harder on reads.
Ace Combat 7: Skies Unknown
Campaign AI scripted; small PvP scene adds little
Grand Theft Auto: San Andreas
Gang AI is scripted, never adaptive
Grand Theft Auto: San Andreas leans a little harder on variance, though the gap is small.
Ace Combat 7: Skies Unknown
Cloud cover gimmicks are learnable
Grand Theft Auto: San Andreas
Territory wars and traffic add light randomness
Grand Theft Auto: San Andreas leans a little harder on optimization, though the gap is small.
Ace Combat 7: Skies Unknown
Aircraft tree and loadout routing matter
Grand Theft Auto: San Andreas
Stats, gym, weapon skill, and routes reward systematic play
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.