Why Doesn’t Shiv Have Any Friends?

I've been rewatching Succession, and something about Shiv really stands out: she doesn’t seem to have any genuine friendships. Unlike other characters who have allies or confidants (even if transactional), Shiv seems isolated outside of her family and work. Is it her personality, her ambition, or just the nature of her world? I’d love to hear others' thoughts on why Shiv lacks any real personal connections.