My ISP in Ontario, Canada, has full ipv6 sorry for their cable customers, but tech support is clueless about it still. I had issues with ipv4 connectivity once

My ISP in Ontario, Canada, has full ipv6 sorry for their cable customers, but tech support is clueless about it still. I had issues with ipv4 connectivity once and they struggled to understand that ipv6 was working perfectly and it was strictly v4 not working at all