LFG is usually related with gamers using it in their social media profiles to join groups. Here are a few examples:
"I need an LFG for Warzone! Who wants to join the squad for the ranked games?" "Anyone LFG interested in a Destiny 2 raid? Looking for skilled players!" "LFG chill group to grind XP in Fortnite. Mic preferred."-in such a manner, users describe what they want from the communities. This is quite a simple way to communicate with everyone about one's need for a group because it's used within contexts like Twitter, Discord, or gaming forums. Whenever you see "LFG" in a post, and wonder about What Does LFG Mean? - it literally means looking for a group.