head to head
Fall Guys asks more than FlatOut: Ultimate Carnage, and the gap is variance.

Execution · Twitch Chaos
A battle-royale party game where execution precision and reading crowd flow carry players through randomised elimination rounds.

Execution · Pure Mechanics
Keeping speed through destruction-racing chaos that punishes clean-lap plans.
Fall Guys leans Execution (Twitch Chaos); FlatOut: Ultimate Carnage leans Execution (Pure Mechanics).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Fall Guys
Precise jumping and dive-dashing is decisive in most rounds
FlatOut: Ultimate Carnage
Holding racing lines through wrecks and ragdoll chaos tests hands
Fall Guys leans a little harder on reads, though the gap is small.
Fall Guys
Human crowd positioning requires light reactive reads
FlatOut: Ultimate Carnage
Rival drivers ram predictably, light multiplayer jockeying
Fall Guys leans clearly harder on variance.
Fall Guys
Round selection and crowd behaviour introduce significant randomness
FlatOut: Ultimate Carnage
Debris and pileups scramble any planned lap
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Fall Guys
Optimal paths and shortcut lines are learnable per minigame
FlatOut: Ultimate Carnage
Car upgrades and track shortcuts are mappable
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.