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.

Optimization · Practiced Mastery
A forgiving platformer testing light execution and exploration routing through fixed level designs.

Optimization · Pure Optimization
A polished co-op puzzle-platformer of physics contraptions and hero-ability combos.
Psychonauts 2 leans Optimization (Practiced Mastery); Trine 4: The Nightmare Prince leans Optimization (Pure Optimization).
Psychonauts 2 leans a little harder on execution, though the gap is small.
Psychonauts 2
Moderate platforming and combat timing, forgiving by design
Trine 4: The Nightmare Prince
Platforming and physics manipulation need steady hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Psychonauts 2
Solo adventure with no adaptive opponent anywhere
Trine 4: The Nightmare Prince
Scripted bosses and puzzles, nothing adapts
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Psychonauts 2
Level layouts and collectibles are fixed once seen
Trine 4: The Nightmare Prince
Deterministic levels with no hidden information
Trine 4: The Nightmare Prince leans a little harder on optimization, though the gap is small.
Psychonauts 2
Routing collectibles and matching psychic powers to encounters
Trine 4: The Nightmare Prince
Combining three heroes' tools solves every puzzle
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.