Yes, but variation due to such load balancing would surely be limited in entropy in practical non-tracking scenarios? Approaching from the other end, it points

Yes, but variation due to such load balancing would surely be limited in entropy in practical non-tracking scenarios? Approaching from the other end, it points towards anycast itself (and similar techniques) being incompatible with hard tracking resistance. I'm glad to see that Firefox containers already mitigate this by using a separate DNS cache for each container.