> My company has just turned off all ip6 connectivity for its corporate laptops because it’s considered a security risk. I disagree, but I do agree that having 4 and 6 is a higher risk than 4 alone or 6 alone, and 6 alone sadly still doesn’t work reliably.

I had a very concreteish security risk with IPv6 and openvpn. At least in Debian config openvpn tunneled only IPv4 by default. I only noticed this by being surprised I got results tailored to my origin country instead of the VPN out node country.

It's eternal (dual stack) paper cuts like this why just turning IPv6 off makes life a lot easier.