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

Optimization · Practiced Mastery
Action-RPG sequel turning Persona 5's turn battles into musou-style real-time brawls.

Execution · Practiced Mastery
Open-world western about an outlaw forced to hunt down his old gang.
Persona 5 Strikers leans Optimization (Practiced Mastery); Red Dead Redemption leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Persona 5 Strikers
Real-time musou combos and dodge timing
Red Dead Redemption
Dead Eye softens but gunplay still wants aim
Red Dead Redemption leans a little harder on reads, though the gap is small.
Persona 5 Strikers
Enemies swarm on scripts
Red Dead Redemption
Multiplayer skirmishes add light human prediction
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Persona 5 Strikers
Minor drop and request randomness
Red Dead Redemption
Ambient events and spawns vary mildly
Persona 5 Strikers leans a little harder on optimization, though the gap is small.
Persona 5 Strikers
Weakness exploitation and bond skill investment
Red Dead Redemption
Mission approaches and economy are learnable
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.