head to head
Tom Clancy's Rainbow Six: Vegas asks more than Overcooked 2, and the gap is reads.

Execution · Practiced Mastery
A frantic co-op cooking game where execution speed, partner reads, and optimal kitchen routing determine your score.

Execution · Competitive PvP
Tactical gunfights testing aim, entry planning and prediction of human opponents online.
Overcooked 2 leans Execution (Practiced Mastery); Tom Clancy's Rainbow Six: Vegas leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Overcooked 2
High-speed chopping, plating, and movement under pressure is the ceiling
Tom Clancy's Rainbow Six: Vegas
Aim and snap-to-cover gunplay punish slow hands
Tom Clancy's Rainbow Six: Vegas leans clearly harder on reads.
Overcooked 2
Anticipating co-op partner actions requires real-time social reads
Tom Clancy's Rainbow Six: Vegas
Multiplayer angles and pushes demand reading human opponents
Overcooked 2 leans a little harder on variance, though the gap is small.
Overcooked 2
Level hazards and order queues introduce random variation
Tom Clancy's Rainbow Six: Vegas
Terrorist hunt spawns vary modestly between runs
Overcooked 2 leans a little harder on optimization, though the gap is small.
Overcooked 2
Optimal kitchen routing and task assignment is learnable per level
Tom Clancy's Rainbow Six: Vegas
Room-entry planning and map knowledge are studyable
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.