When you say “chill group” do you mean a group that is chill, or a group you can chill with? Honest question.
If it’s a group you’re looking to chill with, you don’t need an authenticator for that because it would go in the Custom section of LFG. (I think)
If you’re posting “chill group” in the description for keys and such, I think you’ll need an authenticator attached but you’ll still be able to do that without one in the Custom section of LFG. (Again, I think that’s how it works)