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 · Light / Casual
A joke shooter testing little beyond willingness to laugh along.

Execution · Light / Casual
A collection of short stories about a family's strange deaths.
GentleMoon 2 leans Execution (Light / Casual); What Remains of Edith Finch leans Execution (Light / Casual).
GentleMoon 2 leans a little harder on execution, though the gap is small.
GentleMoon 2
Basic aiming at slow zombies, nothing demanding
What Remains of Edith Finch
Varied vignettes require light input skill.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
GentleMoon 2
Joke enemies follow simple scripts
What Remains of Edith Finch
No adversaries.
GentleMoon 2 leans a little harder on variance, though the gap is small.
GentleMoon 2
Item locations are unknown on a first run only
What Remains of Edith Finch
Stories are fixed.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
GentleMoon 2
A short fixed checklist of items to collect
What Remains of Edith Finch
Little to optimize.
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.