I am using a new laptop, ASUS Zenbook, running linux mint cinnamon. My preferred mouse is a logitech m705 for use on the go. I needed to get it working since it wasn't out of the box. There's several ways to get the unifying receiver working. The easiest for me was using a project on github, logitech unifier.
Simple to do.
cd \~ wget https://github.com/treeder/logitech\_unifier/archive/master.zip unzip master.zip cd logitech\_unifier-master ./autopair.sh
Then followed the prompts, turned it on and it worked. Much simpler than the other options I considered.