Have
There’s the basic currency
Premium currency
Mythic
Owl currency
Aaand straight cash for the bundles.
As long as they have a purpose and dont obscure the view its fine. Thats the main difference between something like a gatcha with 200 currencies that you convert into others (important point, btw!) and OW, where you have the currency for specific things and CANT convert them.
Not to mention the different kinds of competitive currencies…