I don’t anticipate China to operate aircraft from Russian base during a westpac conflict as a regular thing, but rather as an emergency. So from that sense, it’s good for them to get a few practice in. Doesn’t matter as much where the missions is to.
And I would also like to see more overflight into Sea of Japan.
I mean, a degree of interoperability and familiarization is useful in general sure, but I'm referring to the "All cooperations we are seeing that are new and would be significant in westpac scenario" part.
IMO, the cooperation we are seeing now is very much not significant nor relevant for a westpac conflict scenario because the sheer amount of materiel needed to make a PLA basing in Russia's far east to be an asset rather than a burden is so much more significant than this.
In terms of gradually having more cooperation and familiarization in that region for the PLA, sure it's useful.