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 · Pure Optimization
A live-service Fallout where perk-card builds and CAMP crafting drive progression.

Optimization · Practiced Mastery
Bethesda space RPG with ship and outpost systems.
Fallout 76 leans Optimization (Pure Optimization); Starfield leans Optimization (Practiced Mastery).
Starfield leans a little harder on execution, though the gap is small.
Fallout 76
Shooter inputs in live combat
Starfield
Shooter and piloting inputs
Fallout 76 leans a little harder on reads, though the gap is small.
Fallout 76
PvP exists but most play is PvE
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.
Fallout 76
Legendary and event loot rolls
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.
Fallout 76
Perk cards, CAMP, build crafting key
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.