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
An open-world chaos sandbox adding tornado weather to grappling-hook anarchy.

Execution · Practiced Mastery
The first cinematic treasure-hunting adventure of cover shootouts and cliffside climbing.
Just Cause 4 leans Execution (Practiced Mastery); Uncharted: Drake's Fortune leans Execution (Practiced Mastery).
Uncharted: Drake's Fortune leans a little harder on execution, though the gap is small.
Just Cause 4
Wingsuit and customised tether handling
Uncharted: Drake's Fortune
Cover gunfights and climbing timing
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Just Cause 4
Enemy AI is static
Uncharted: Drake's Fortune
Mercenary AI is scripted waves
Just Cause 4 leans a little harder on variance, though the gap is small.
Just Cause 4
Weather fronts shake encounters up slightly
Uncharted: Drake's Fortune
Fully authored set pieces
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Just Cause 4
Frontline progression and loadout tinkering
Uncharted: Drake's Fortune
Encounter layouts and weapon choices are learnable
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.