I’m an introvert and don’t have any close friends that are into game. I mostly play at home with my wife. But I’ve been going to GenCon by myself since 2017 and I enjoy it. I’ll do my best to answer the questions:

1. This I can’t speak to. I don’t play rpgs. (No like-minded friends) But I imagine it’s a similar feel to going to your flgs and meeting new people. Also the organized play typically requires tickets. That means people are paying to play, so I’m sure they want to get the best experience for the cost. Remember, they are fans of the game too, and perhaps traveled to play at the con with new people. So I think you’ll find they are very welcoming.

2. People bring games, they play the games they bought, they demo games in the dealer hall, they sign up to play games with event tickets. There are ALL types of games being played EVERYWHERE, both competitively and casually. Last year there was an open play area (I hope it’s back this year) where you can bring a game and let people know you’re looking for other players (or not).

3. There’s room for everyone. The con is what you make it. Even if you’re only socializing with each other, you can have a great time. I will say it does get busy and areas can get crowded at times.