Is all the chocolate bases the same

I loved the Oreo cookie so much!! Way too much! The frosting is great but for a one time bite so after eating that one cookie, I bought 6 more but without frosting ! I love the chocolate taste! I know it’s a basic cookie now, but bcus of school , I don’t have enough time to bake.

My question is if all the chocolate cookies are the same exact base but w different toppings? So meaning I don’t have to wait for the Oreo cookie but just wait for the next chocolate cookie, like the upcoming galaxy brownie or chocolate cake to get a simple chocolate cookie? (W/out toppings and frosting)