Thats due to the new no-dupes system. All my drops have also been Moira stuff because I have all the base game items (blues and silvers).
However, I bought the gold Sym gun:
No aim, no brain. Must be a Sym main. Jk, Idk why I got it, but my sister got Moira’s gold gun-wristcuffs-things.
My next gold gun is Mei, and then Sombra and then Junk. Junks, just… meta now so Imma give it some time to slow down.
After that? Maybe Orisa. I’m actually growing on her because of all the kills i get with her.