[coddle-hark]

This is what a firewall is for.

[dx034]

Most people use ISP provided routers at home, firewalls in those aren't necessarily great.

[jiggawatts]

It would be literally the EXACT SAME firewall with IPv6 as with IPv4 NAT.

Most IPv6 routers are also IPv4 routers and behave exactly the same for both. They share the same router code, the same firewall, etc...