Yes, I could assign every device a ULA with NAT. That would defeat a major selling point of IPv6. An alternative would be to assign both a GUA and ULA to every

Yes, I could assign every device a ULA with NAT. That would defeat a major selling point of IPv6. An alternative would be to assign both a GUA and ULA to every device, via DHCPv6 and SLAAC. However, not all devices support this. For example Android doesn't support DHCPv6 and NetworkManager doesn't seem to support multiple auto configuration methods