if you have several computers each with a few games installed and they all update once or twice a month that's a fuckload of bandwidth spent on those updates - hundreds of gigs a month

my porn isn't loading right now on this machine because my other machine is downloading PUBG update

this is on a 400 mbit connection

if you ever connect your laptop through a mobile hotspot on your phone make sure your games don't auto update or you could blow through your mobile data real quick