chrysn on Nostr: The one application group not covered by that argument are devices that have been v6 ...

The one application group not covered by that argument are devices that have been v6 only already, relied on DNS64 so far and were not yet updated to read PREF64. But I guess that while those exist, they are niche enough that on those networks, DNS64 can be left running, maybe even selectively for those devices.