I’m not sure if this came with the last patch or before it already, but since this week I’ve been looting Miy’s Armor Cloaks from borgs and drills. I’ve found about 8 so far and they seem to be about equally common as other Miy’s pieces.
I found Ql150-230ish on PW borgs, Ql60-120ish on Avalon borgs and Ql120-200ish on Belial Forest drills.
I didn’t try Medusas, Anvians or Mantises yet, but maybe they drop them too now? Did anyone else find any? I like this change