The Type 052 Harbin, or is it the Qingdao, is still technically the flagship of the Northern Sea fleet for the Chinese Navy, despite the Liaoning and the Nanchang over there. The ship is literally outdated compared to every member of the Northern Sea Fleet.
The S300F the Moskva has is very outdated. The two RIF-M systems that were sold to China to become part of the Type 051C, were supposed to be for the last two Kirov class battlecruisers that were never built, and is well more advanced than than what the Moskva has. I would have to consider that the Type 051C's RIF-M is already outdated compared to the 052C's system, much less the 052D, and much less the 055's.
The Moskva's fire control radar has an arcane arrangement, compared to the more modern phase array the S-300PMU and the RIF-M on the Type 051C has.
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If the S300F still works the Moskva may still be useful against any drone or UAV the Ukrainians may put up, but I suspect the system may no longer be operable, that it may already have been cannibalized to keep those on the Marshall Ustinov and the Varyag working. I doubt that any new parts are made for the older system and the Russian Navy intends to retire all three ships some years from now as more Admiral Gorshkov class frigates come online.