What’s the difference between 4 level referral program and affiliate referral link

The link to the 4-level program looks like this https://primexbt.com?signup=XXXXXX. Referral
link from the affiliate program looks like this https://go.primexbt.com/click?pid=ХХХХ&offer_id=12.
The difference between these two programs is that in the affiliate network there are different
types of traffic and total commission is usually higher. In the 4-level program
you usually earn not only from referral traders, but also from traders, which
were referred by your traders up to the 4-level.