head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Execution · Practiced Mastery
Open-world Stone Age action game about hunting and conquering tribal outposts with tamed beasts.

Execution · Twitch Chaos
A kart racer with random items and drift timing across themed tracks.
Far Cry Primal leans Execution (Practiced Mastery); Muppet RaceMania leans Execution (Twitch Chaos).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Far Cry Primal
Bow aim, melee timing, beast control under pressure
Muppet RaceMania
Steering, drifting and item timing decide races
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Far Cry Primal
Scripted tribal AI never models the player
Muppet RaceMania
AI racers scripted, no real adaptive prediction
Muppet RaceMania leans a little harder on variance, though the gap is small.
Far Cry Primal
Wildlife encounters and patrol spawns are random
Muppet RaceMania
Random item pickups swing positions
Far Cry Primal leans a little harder on optimization, though the gap is small.
Far Cry Primal
Outpost routes, crafting economy, beast taming order
Muppet RaceMania
Shortcuts and item use reward track knowledge
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.