head to head
Mario Kart 8 Deluxe asks more than F1 Race Stars, and the gap is optimization.

Execution · Twitch Chaos
Kart-racing control with item RNG swinging family-friendly races.

Execution · Twitch Chaos
A kart racer where item luck collides with optimized lines and builds.
F1 Race Stars leans Execution (Twitch Chaos); Mario Kart 8 Deluxe leans Execution (Twitch Chaos).
Mario Kart 8 Deluxe leans a little harder on execution, though the gap is small.
F1 Race Stars
Kart handling and boost timing decide clean laps
Mario Kart 8 Deluxe
Drift boosts, snaking, and item timing demand precision.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
F1 Race Stars
Human racers feint and time item attacks in multiplayer
Mario Kart 8 Deluxe
Human racers bait and block items but mostly reactive.
Mario Kart 8 Deluxe leans clearly harder on variance.
F1 Race Stars
Item rolls swing positions like any kart racer
Mario Kart 8 Deluxe
Item distribution heavily randomized by position.
Mario Kart 8 Deluxe leans clearly harder on optimization.
F1 Race Stars
Track shortcuts and KERS timing are learnable edges
Mario Kart 8 Deluxe
Kart build, line, and shortcut knowledge define top times.
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.