Here is a tutorial on how to revert your steam to the old friends list and chat UI.
If the steps below don't explain this well enough, someone else made a video tutorial for this as well:Step 1:
Navigate your way through the steam directory until you are in the steam folder, like so in the image below.Step 2:
Create a shortcut to your steam application by right clicking on it and clicking "create shortcut".Step 3:
Right click on the new shortcut and then click "properties".Step 4:
Go to "Target" and write "-nochatui" "-nofriendsui"
as seen in the image below.Step 5:
Drag and drop the shortcut into your desktop so that you can easily launch it without having to navigate through the files to reach it.
Staff Sergeant Martin Cairntrodlie
193rd Glider Infantry Regiment.
Charlie Company, First Platoon.