head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Practiced Mastery
A first-person haunted-house survival game solved by crafting optimisation and scripted-enemy routing.

Optimization · Practiced Mastery
Bethesda space RPG with ship and outpost systems.
Resident Evil 7: Biohazard leans Optimization (Practiced Mastery); Starfield leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Resident Evil 7: Biohazard
First-person aiming and blocking under Molded pressure matters
Starfield
Shooter and piloting inputs
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Resident Evil 7: Biohazard
Family AI follows scripted stalker scripts, never adapts to you
Starfield
Scripted NPC AI patterns
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Resident Evil 7: Biohazard
Limited item locations are unknown on first visits
Starfield
Procedural planets, loot variance
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Resident Evil 7: Biohazard
Resource crafting, tape management and route sequencing are fully learnable
Starfield
Ship building, outpost, perk routing
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.