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.

Execution · Competitive PvP
Chaotic asymmetric rounds testing aim, facility knowledge and reading untrustworthy humans.

Reads · Competitive PvP
Open-world pirate game with PvPvE ship combat.
SCP: Secret Laboratory leans Execution (Competitive PvP); Sea of Thieves leans Reads (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
SCP: Secret Laboratory
Gunfights and SCP chases demand aim and movement
Sea of Thieves
Ship sailing and naval gunnery require hands
Sea of Thieves leans a little harder on reads, though the gap is small.
SCP: Secret Laboratory
Human teams bluff, betray and negotiate constantly
Sea of Thieves
PvP ship fights are pure mind games
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
SCP: Secret Laboratory
Random spawns, items and facility layout each round
Sea of Thieves
Server encounters, weather, loot vary
Sea of Thieves leans a little harder on optimization, though the gap is small.
SCP: Secret Laboratory
Class knowledge, keycard routes and zone control reward mastery
Sea of Thieves
Routes, loadouts, ship setups solvable
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.