head to head
ARC Raiders asks more than Mini Royale, and the gap is optimization.

Execution · Grand Arena
An extraction shooter where scavengers dodge killer machines and rival squads for loot.

Execution · Competitive PvP
Battle-royale gunfights testing aim and positioning reads under loot randomness.
ARC Raiders leans Execution (Grand Arena); Mini Royale leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
ARC Raiders
Gunplay and movement under machine fire
Mini Royale
Aimbot would dominate every toy-soldier firefight
ARC Raiders leans a little harder on reads, though the gap is small.
ARC Raiders
Rival squads ambush, bait, and adapt
Mini Royale
Fifty human players to predict in positioning and pushes
ARC Raiders leans a little harder on variance, though the gap is small.
ARC Raiders
Loot spawns and unknown player positions
Mini Royale
Loot spawns and circle placement shake up every match
ARC Raiders leans clearly harder on optimization.
ARC Raiders
Loadout economy and map knowledge compound
Mini Royale
Drop spots and loadout knowledge form a thin solvable layer
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.