head to head
Borderlands 2 asks more than Five Nights at Freddy's 4, and the gap is optimization.

Optimization · Systems & Chaos
Loot-shooter RPG built on gear chasing.

Variance · Systems & Chaos
Listening for randomised audio cues and executing a defensive checking routine.
Borderlands 2 leans Optimization (Systems & Chaos); Five Nights at Freddy's 4 leans Variance (Systems & Chaos).
Borderlands 2 leans a little harder on execution, though the gap is small.
Borderlands 2
Aim matters but generous hit feel
Five Nights at Freddy's 4
Reacting to breath audio cues within tight windows matters
Borderlands 2 leans a little harder on reads, though the gap is small.
Borderlands 2
Enemies are scripted loot fodder
Five Nights at Freddy's 4
Animatronic movement is RNG, not an adapting mind
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Borderlands 2
Procedurally generated weapon drops vary
Five Nights at Freddy's 4
Random animatronic positions stay hidden behind audio cues
Borderlands 2 leans clearly harder on optimization.
Borderlands 2
Skill trees and gear math heavily solved
Five Nights at Freddy's 4
Door-checking routines become a learnable optimal loop
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.