head to head
Mario Kart 8 Deluxe asks more than S.T.A.L.K.E.R. 2: Heart of Chornobyl, and the gap is reads.

Execution · Twitch Chaos
A kart racer where item luck collides with optimized lines and builds.

Execution · Twitch Chaos
An open-world survival shooter set in a hostile irradiated Zone full of anomalies and scarce supplies.
Mario Kart 8 Deluxe leans Execution (Twitch Chaos); S.T.A.L.K.E.R. 2: Heart of Chornobyl leans Execution (Twitch Chaos).
Mario Kart 8 Deluxe leans a little harder on execution, though the gap is small.
Mario Kart 8 Deluxe
Drift boosts, snaking, and item timing demand precision.
S.T.A.L.K.E.R. 2: Heart of Chornobyl
Lethal gunfights with recoil, bleed, and ballistics punish sloppy aim
Mario Kart 8 Deluxe leans clearly harder on reads.
Mario Kart 8 Deluxe
Human racers bait and block items but mostly reactive.
S.T.A.L.K.E.R. 2: Heart of Chornobyl
A-Life NPCs roam but never model the player adaptively
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Mario Kart 8 Deluxe
Item distribution heavily randomized by position.
S.T.A.L.K.E.R. 2: Heart of Chornobyl
Anomalies, emissions, stash rolls, and unknown Zone layouts hide information
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Mario Kart 8 Deluxe
Kart build, line, and shortcut knowledge define top times.
S.T.A.L.K.E.R. 2: Heart of Chornobyl
Artifact hunting, gear upkeep economy, and routing through the Zone
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.