head to head
Company of Heroes asks more than Age of Empires IV, and the gap is variance.

Optimization · Grand Arena
Modern AoE balances macro hands with adaptive multiplayer.

Execution · Grand Arena
WWII squad-tactics RTS where cover micro, sector pressure, and doctrine counters form an interlocking test.
Age of Empires IV leans Optimization (Grand Arena); Company of Heroes leans Execution (Grand Arena).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Age of Empires IV
APM and micro matter, lower than SC2
Company of Heroes
Infantry cover micro and suppression-break timing are precise demands
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Age of Empires IV
1v1 ladder vs adapting humans
Company of Heroes
Opponent sector pushes and doctrine choices must be predicted
Company of Heroes leans clearly harder on variance.
Age of Empires IV
map gen minor
Company of Heroes
Reinforcement point capture variance and munitions drops add uncertainty
Age of Empires IV leans a little harder on optimization, though the gap is small.
Age of Empires IV
civ build orders well solved
Company of Heroes
Resource point priority and doctrine selection are learnable systems
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.