Does the nostr:npub1mutnyacc9uc4t5mmxvpprwsauj5p2qxq95v4a9j0jxl8wnkfvuyque23vg for Andriod use a websockets proxy server?

There is a setting for it in 'Settings > Servers', yet it doesn't seem necessary as it could open sockets directly. 🤔