So i'm cheap , when I got my clone Brizo I loved it until the cheap plastic that connected the brass button to the assembly broke , I am certain that a genuine one wouldn't break so easy but I worked on a replacement button, it takes less than 30 minutes to print , use a raft unless you have majorly good adhesion.
This replaces both the button and the connection inside , it will make sense once you disassemble the brizo.

This will also work for a genuine brizo.