head to head
H1Z1 asks more than FIFA 21, and the gap is variance.

Execution · Competitive PvP
Football sim testing execution and opponent reading under a studied tactical meta.

Execution · Grand Arena
Early battle royale where scavenged loot and shrinking gas decide 150-player brawls.
FIFA 21 leans Execution (Competitive PvP); H1Z1 leans Execution (Grand Arena).
H1Z1 leans a little harder on execution, though the gap is small.
FIFA 21
Skill moves and finishing mechanics demand practiced hands
H1Z1
Gunfights and vehicle control decide duels
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
FIFA 21
Outguessing a human's defensive shape and attacking patterns is central
H1Z1
Outguessing human rotations and pushes
H1Z1 leans clearly harder on variance.
FIFA 21
Deflections, finishing RNG and pack luck colour outcomes
H1Z1
Loot spawns and gas circles randomise runs
FIFA 21 leans a little harder on optimization, though the gap is small.
FIFA 21
Meta formations, custom tactics and squad building are studied deeply
H1Z1
Drop spots, loot routes, and zone play
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.