Some of the apps/predictors have caught up with the Nauka data and FWIW this evening we get a visible pass of Nauka and then the ISS…but there’s a roughly 25 min time difference between the two transits - certainly ATM the two objects are thousands of km from each other.
Maybe the two vehicles were ( relatively) close together in space flight terms when the Russian vehicle was injected into orbit and due to the difference in orbital elements the two vehicles have separated over the last few days which would be an interesting way to arrange things…..
The launch time for Nauka is available so if I have time later I'll look and see I can find out where the ISS was at that time - that should help provide something close to a definitive answer...