head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.

Execution · Practiced Mastery
Cinematic survival action where scavenged resources and stealth carry you through the apocalypse.

Execution · Practiced Mastery
Brutal cinematic stealth-action sequel where execution under pressure decides fights.
The Last of Us leans Execution (Practiced Mastery); The Last of Us Part II leans Execution (Practiced Mastery).
The Last of Us Part II leans a little harder on execution, though the gap is small.
The Last of Us
Aim, stealth timing, and scarce-ammo combat
The Last of Us Part II
Faster, more demanding combat and dodge timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
The Last of Us
Enemy AI searches but follows mappable routines
The Last of Us Part II
Smarter AI still runs mappable search scripts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
The Last of Us
Encounter layouts unknown first time only
The Last of Us Part II
First-encounter unknowns only
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
The Last of Us
Resource crafting and encounter routing
The Last of Us Part II
Crafting economy and encounter route planning
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.