Earlier quoted context omitted.
I have it installed on my main Mac. But honestly I don't use it/don't know if it's doing anything. Should I be doing something?
That probably depends on what you do with your computer. If you regularly clone git repos and run code you didn’t write or run unsigned apps from untrusted developers, it’s probably a good idea to scrutinize the connections that code is making.
but even relatively established apps show connections to weird places.
Syncthing of all apps has made connections to 107 places.