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.

Variance · Light / Casual
A choice-driven comedy adventure with almost no skill test at all.

Execution · Light / Casual
A puzzle horror game about learning trap solutions through trial and error.
Tales from the Borderlands leans Variance (Light / Casual); The Witch's House MV leans Execution (Light / Casual).
The Witch's House MV leans a little harder on execution, though the gap is small.
Tales from the Borderlands
Occasional QTEs are the only physical demand
The Witch's House MV
occasional quick reactions to avoid death traps
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Tales from the Borderlands
No opponent of any kind
The Witch's House MV
no adaptive opponent, puzzle-driven horror
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Tales from the Borderlands
Story branches are unknown until chosen
The Witch's House MV
some trial-and-error trap randomness
The Witch's House MV leans a little harder on optimization, though the gap is small.
Tales from the Borderlands
Choices barely change outcomes; nothing to solve
The Witch's House MV
learning correct puzzle solutions
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.