I have exhaustively evaluated consumer routers for supporting the IPv6 standard, and it’s quite spotty with the best of them requiring an ideal lucky match between the way your ISP issues addresses and the way your router does. The only consistent way for the home user I found to get support for that standard on their home network is to use the provided device. It’s a shame.
In summary, if you want the new type of Internet addresses, it’s a pain if you want to own your own router.