Odido is the cheapest ISP for a reason. They refuse to implement anything that isn't strictly required.
Perhaps implementing an Odido tax might actually make Odido care enough to throw the switch on IPv6. They bought 2a02:4240::/32, they just refuse to make use of it.
they do use it in their speedtest server.
curl -v https://speedtest.ams.t-mobile.nl.prod.hosts.ooklaserver.net:8080
...
* Connected to speedtest.ams.t-mobile.nl.prod.hosts.ooklaserver.net (2a02:4240::e) port 8080
> They refuse to implement anything strictly required
This describes a lot of businesses ngl.
Bell in Canada is one huge head scratcher. They are one of the largest ISPs here and I can even buy 8 gig internet to my house if I want but they don't support IPv6.