You seem to have misunderstood how IPv6 works. In a home setup, all the traffic still goes through a single router which typically has a restrictive firewall enabled by default.
If you use a consumer-grade device at home that you don't have full access to (meaning root via ssh and can update packages, cute web ui's alone don't count), you are screwed in other ways either way (hello open CVE's on unpatched routers....). I literally have a brand new Asus router sitting in a box at home, cause it has 3 open CVE's and asus basically dropped support for it, but they still sell them. Oh and I have root ssh access on it - it is running ubuntu 12 underneath it all (disgusting that asus haven't bumped it). Just all garbage. So I built my own x86 dual-nic/Wifi 6E router box that runs openwrt + adguard home + unbound + wireguard (all on proxmox) and all 4 systems update nightly. This setup absolutely crushes the performance versus top spec consumer-grade routers and I get to monitor it properly and update packages daily.