head to head
System Shock 2 asks more than Clair Obscur: Expedition 33, and the gap is variance.

Optimization · Practiced Mastery
Turn-based RPG whose reactive parry timing layers execution onto build optimization.

Optimization · Pure Optimization
An immersive-sim RPG demanding intricate build optimisation and resource management aboard a hostile alien-infested starship.
Clair Obscur: Expedition 33 leans Optimization (Practiced Mastery); System Shock 2 leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Clair Obscur: Expedition 33
Parry and dodge timing inside turn-based combat
System Shock 2
Weapon degradation and limited stats moderate the raw aim ceiling
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Clair Obscur: Expedition 33
Bosses follow learnable scripted patterns
System Shock 2
All enemies are scripted with fixed patrol and attack routines
System Shock 2 leans clearly harder on variance.
Clair Obscur: Expedition 33
Some unknown attack strings on first encounter
System Shock 2
Random loot locations and psi powers introduce run-to-run variance
System Shock 2 leans a little harder on optimization, though the gap is small.
Clair Obscur: Expedition 33
Pictos, builds, and turn economy are solvable
System Shock 2
Deep build tree and resource conservation define the entire skill ceiling
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.