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.

Optimization · Practiced Mastery
Zelda-flavored musou about juggling battlefield objectives while mowing hordes.

Optimization · Practiced Mastery
Solving camera placement puzzles, then executing the watch-and-shoot plan under time pressure.
Hyrule Warriors leans Optimization (Practiced Mastery); Star Fox Guard leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Hyrule Warriors
Combo strings and weak-point gauge timing
Star Fox Guard
Snapping between camera feeds to shoot robots needs quick hands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Hyrule Warriors
Enemy hordes are mindless and scripted
Star Fox Guard
Robot waves follow fixed scripted routes, nothing adapts
Star Fox Guard leans a little harder on variance, though the gap is small.
Hyrule Warriors
Minor drop and mission randomness
Star Fox Guard
Wave compositions are unknown on first attempts only
Star Fox Guard leans a little harder on optimization, though the gap is small.
Hyrule Warriors
Keep management, character builds, and map priorities
Star Fox Guard
Camera placement and wave memorisation solve each map
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.