Ash I'm curious as to what that might taste like actually. Surely it can't even be slightly similar to the taste of coffee. But maybe I'm wrong since I don't really eat mushrooms.
You are not wrong. Mushroom 'coffee' does not taste anything like coffee, or like anything that is good at all.
There are actual coffees that have some mushrooms added that should be good for your brain and body but they are mostly coffee and taste kind of normal.