I did the use button mapper. Little finicky at first but now it's great. It's probably worth noting, in case someone bumps into this later, the exact commands in the link you posted didn't work for me, I needed to search for a different launcher removal command, since I'm not on a chrome cast, or maybe Google just changed they're launcher name/location. The appwraith remover worked, just not for the actual launcher. I'll rack down what I did later and update this with my command.