[2021] Has the loot via gamestage changed?

The stages roll in, Not replace one another. Once you reach the next stage, it starts appearing in loot- But the previous tier still dominates.

So after 11 gamestage you can start finding guns- But that doesn't mean 99% of your loot won't still be junk. But then by 100, you dont find much junk, and find more good stuff.