@release_candidate I switched to trackballs after getting #CarpalTunnel syndrom in they late 1990s and have never looked back. Love them. They stay put and can be used on an otherwise cluttered desk...
I prefer the ones where I don't have to use my thumb to operate the ball, unfortunately Logitech discontinued those, so my current favourite is #Kingston Expert Mouse.
but get the wired one. Wireless trackballs make no sense whatsoever for a desktop computer.