> those bloated packets are death for many modern applications like VoIP.

Huh? The packet sizes aren’t that much different and VOIP is hardly a taxing application at this point anyway. VOIP needs barely over dial-up level bandwidth.

It's not the bandwidth it's the latency. Because of the latency you need to pack a small amount of data in VoIP packets so the extra header size of IPv6 stings more than it would for ordinary http traffic

https://www.nojitter.com/telecommunication-technology/ipv6-i...