Thank you so much for your input!

While I think Tox is nice, the metadata I was talking about wasn't just each users IP being leaked, I was talking more about normal metadata, who it was sent from, who it was sent to, when, from what device, from what client, etc. While Tor would theoretically keep you anonymous, any metadata leakage, especially an amount as severe as Tox's, should definitely be considered. While I'm certainly no cyber criminal, the leakage just fills me with paranoia.