I used to be a part of the “Tomb Raider Multiplayer Madness” Steam Group. They have regular weekly events. I became annoyed with the event notifications, so I thought leaving the group would cease them. I left the group. I’m still getting event notifications from the group. How do I stop the event notifications?
Answer
Apparently, with the new “Explore your Queue”, when you choose to follow the game, it adds that game to your groups and it can only be removed through the community hub of that game.
Do not follow games if you do not want notifications from that game.
Attribution
Source : Link , Question Author : NiteCyper , Answer Author : Bolerro