EB3 Professional is someone with 4 year Bachelor (or equivalent). EB3- Skilled Worker is a job that requires 2 years experience only. in case of skilled Worker, 3 year education does not matter. This whole thing is on Labor cert language. if labor cert job requires clearly 2 years of experience, USCIS consider it as Skilled worker
So basically depends on the ETA 750 or ETA 9089