head to head
Fortnite asks more than Ring of Elysium, and the gap is optimization.

Execution · Grand Arena
Build-fight battle royale with deep mechanics.

Execution · Grand Arena
Gunfight execution and human prediction under randomised loot and storms.
Fortnite leans Execution (Grand Arena); Ring of Elysium leans Execution (Grand Arena).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Fortnite
Build-edit-aim combos punish slow hands
Ring of Elysium
Gunfights are won by aim and movement first
Fortnite leans a little harder on reads, though the gap is small.
Fortnite
Box fights are pure adaptive mind games
Ring of Elysium
Outguessing human rotations and pushes is constant
Ring of Elysium leans a little harder on variance, though the gap is small.
Fortnite
Loot drops, storm, item rotations vary
Ring of Elysium
Loot spawns and storm path randomise every match
Fortnite leans clearly harder on optimization.
Fortnite
Loadouts, mats economy, rotations solvable
Ring of Elysium
Drop routes and rescue-flight positioning reward planning
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.