Peanut Butter Brownie Trifle

[18] oz box chocolate brownie mix (plus ingredients to prepare [i.e. Ghiradelli])

[8] oz cream cheese (softened)

peanut butter

powdered sugar

heavy cream (divided)

pure vanilla extract

[8] oz frozen whipped topping (thawed and divided)

[16 oz] bag miniature peanut butter cups (unwrapped and chopped)

sea salt or salted cocktail peanuts (chopped)

[12] oz package dark chocolate chips