Silencing Steam Friend Pop Ups is a way to prevent notifications from appearing on your screen when your friends come online, go offline, or send you a message. This can be useful if you find these notifications to be distracting or if you simply want to focus on your game without being interrupted.
There are a few different ways to silence Steam friend pop ups. One way is to disable them in the Steam settings. To do this, open the Steam client and click on the “Settings” tab. Then, click on the “Friends” tab and uncheck the box next to “Show notifications when friends come online or go offline.”