Is it a red flag that I haven't met her friends?

I met and started dating this girl pretty soon after dating. However.. while she has hung out with several of my friends and we've gone on double dates with couples I know... I haven't met a single one of her friends.

Its been about a month of dating. She lives with roommates sort of out in the middle of nowhere, and I live alone downtown. So if we want to do fun city stuff or fool around, my place is way easier... but still. What do you all think?
Is it a red flag that I haven't met her friends?
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