This guide will let you know how to add friends in Dota 2. You have to follow the simple steps below to add friends.
You will need to go to the main screen and click on your profile.
From there, you can click on any of your previous matches.
In the last match section, you have to click on the champion display of the user you want to add. You can click on anyone even if they’re from the opposing team.
Once you’re in their profile, you can add them as a friend by clicking on the Add Friend button, just beside their friend id.
Next, you need to confirm your choice on the prompt.