Plenty. You can get oracles showing up in many weird places for one. If you want double encryption run AES-256-GCM TLS over WireGuard (Uses ChaCha20). You need

Plenty. You can get oracles showing up in many weird places for one. If you want double encryption run AES-256-GCM TLS over WireGuard (Uses ChaCha20). You need to key both with hybrid post-quantum crypto though.