I can tell you categorically that "upgrading" to IPv6 will do jack schitt for my internet. It will just increase the processing load on my router. My current router is not capable of that load.
Denial is a river in Egypt, as they say.
I know my traffic is being throttled to overseas locales, I know my traffic is being eavesdropped. I know my ISP begins to fume and let off steam when I use NordVPN to bypass their BS because that's how I get around.
They can do whatever they want, in fact, let them be them. We will continue to pay extra for NordVPN to get past the time-based blockade that is apparently caused by my router, and we will have decent internet at home. We will get what we pay for, without having to fight, or do pointless WinMTR tests