head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Execution · Practiced Mastery
Open-zone Metro entry trading tunnels for a cross-Russia survival journey.

Execution · Practiced Mastery
Refined sequel deepening Metro's stealth and moral undercurrents.
Metro Exodus leans Execution (Practiced Mastery); Metro: Last Light 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.
Metro Exodus
open-zone gunplay and stealth takedowns
Metro: Last Light
tighter gunplay than 2033, still deliberate
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Metro Exodus
human and mutant AI is mappable
Metro: Last Light
scripted enemy encounters
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Metro Exodus
weather and patrols add mild uncertainty
Metro: Last Light
hidden morality system opaque first time
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Metro Exodus
crafting, scavenging, and approach planning
Metro: Last Light
stealth routes and resource management
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.